Activity for matthewsnyder
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Edit | Post #289750 | Initial revision | — | 1 day ago |
| Answer | — |
A: Nvidia docker runtime: Failed to create task for container I found a partial fix. You have to run: ``` sudo nvidia-ctk cdi generate --output=/etc/cdi/nvidia.yaml ``` After this, podman is able to run it: ``` sudo podman run --rm --device nvidia.com/gpu=all ubuntu nvidia-smi -L GPU 0: NVIDIA GeForce GTX 1060 3GB (UUID: GPU-...) ``` However, Docke... (more) |
— | 1 day ago |
| Edit | Post #289717 |
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— | 1 day ago |
| Edit | Post #289749 | Initial revision | — | 1 day ago |
| Question | — |
Why does $XDG_DATA_HOME default to ~/.local/share? Why does `XDGDATAHOME` default to `/.local/share`? Why not something less cryptic, like `/.data`? Why did they decide use that path? (more) |
— | 1 day ago |
| Suggested Edit | Post #289717 |
Suggested edit: (more) |
helpful | 2 days ago |
| Suggested Edit | Post #283940 |
Suggested edit: (more) |
pending | 7 days ago |
| Comment | Post #289649 |
That's not true, sometimes people search for system files. (more) |
— | 7 days ago |
| Edit | Post #289685 | Initial revision | — | 8 days ago |
| Answer | — |
A: What are the concrete security risks of forcibly terminating a process? That sounds like bad design on the developers' part. There are many unavoidable ways a program may be terminated unexpectedly: Killed by an OOM killer Program crash Terminated by virus OS crash Computer lost power If these really do introduce a security risk, then it's very bad news fo... (more) |
— | 8 days ago |
| Edit | Post #289682 |
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— | 9 days ago |
| Edit | Post #289682 |
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— | 9 days ago |
| Edit | Post #289682 | Initial revision | — | 9 days ago |
| Question | — |
Nvidia docker runtime: Failed to create task for container I installed the Nvidia container toolkit) so I can use GPU acceleration in Docker containers. However, I can't get the containers to work: ```sh $ sudo docker run --runtime=nvidia nvidia/cuda:12.2.0-base-ubuntu20.04 nvidia-smi docker: Error response from daemon: failed to create task for contain... (more) |
— | 9 days ago |
| Edit | Post #289654 |
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— | 13 days ago |
| Edit | Post #289654 | Initial revision | — | 13 days ago |
| Question | — |
Are NixOS and Guix analogous projects? From what I can tell, both NixOS and Guix are built around a package manager which, instead of installing package into the "common environment" as is traditional, isolates them to mitigate issues arising from various dependency/version conflicts. Are there any significant differences between these... (more) |
— | 13 days ago |
| Edit | Post #289653 | Initial revision | — | 13 days ago |
| Answer | — |
A: How do I tweak the start parameters of GUI apps? tl;dr: 1. Find the `.desktop` file that you are currently running 2. It is probably in a system location, so copy it to a user location 3. Modify the file contents The normal way to create icons for GUI apps on Linux is to create `.desktop` files. These are files describing the shell-styl... (more) |
— | 13 days ago |
| Edit | Post #289650 |
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— | 13 days ago |
| Edit | Post #289650 |
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— | 13 days ago |
| Comment | Post #289650 |
* https://linux.codidact.com/posts/288309
* https://linux.codidact.com/posts/285041 (more) |
— | 13 days ago |
| Edit | Post #289651 |
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— | 13 days ago |
| Edit | Post #289652 | Initial revision | — | 13 days ago |
| Answer | — |
A: How to fix DPI for Spotify There's multiple, sometimes overlapping ways of altering the DPI globally on Linux. You should first ensure these are properly configured and Spotify is still not using them correctly. However, Spotify provides a `--force-device-scale-factor` argument for controlling DPI scaling. First, test it... (more) |
— | 13 days ago |
| Edit | Post #289651 | Initial revision | — | 13 days ago |
| Answer | — |
A: Suggestion: Basic Linux skills compendium My thoughts on the matter are clear from the question, but I'll add some example topics that could be covered by this "basics compendium": A "curriculum" of sorts that lists all the basic topics in a logical order for people who want to try learning all or most of them Explanation of what a she... (more) |
— | 13 days ago |
| Comment | Post #289647 |
I don't have time for a full answer, but basically it's:
1. Find the `.desktop` file for the app (see https://linux.codidact.com/posts/289648)
2. Edit the file's `Exec` field etc.
3. Note the difference between `.desktop`s under system paths like `/usr/share` and user paths under `~`. (more) |
— | 13 days ago |
| Edit | Post #289650 | Initial revision | — | 13 days ago |
| Question | — |
Suggestion: Basic Linux skills compendium We are all Linux users and enthusiasts on this site, as well as caring about FOSS. Although technically this is a site for technical Q&A, I think some level of Linux activism is possibly beneficial, in the sense of helping newbies "get into Linux". It should not be our job to convince people to use L... (more) |
— | 13 days ago |
| Edit | Post #289649 | Initial revision | — | 13 days ago |
| Answer | — |
A: How do I find files? The ancient utility `find` should come installed on the majority of distributions. Technically, `find` recursively locates all files and directories under a path, and prints their full paths. It is of course possible to pipe it to other tools like `grep` (actually, `ls` can also list recursively, whi... (more) |
— | 13 days ago |
| Edit | Post #289648 | Initial revision | — | 13 days ago |
| Question | — |
How do I find files? How can I search for files on my system? Ideally, I would like to search by various criteria, like date, name, extension, etc. (more) |
— | 13 days ago |
| Edit | Post #289647 | Initial revision | — | 13 days ago |
| Question | — |
How do I tweak the start parameters of GUI apps? There are many GUI apps on my computer that show up as eg. items in the start menu. When I launch these, what if I want to control how exactly they are launched, such as setting environment variables or adding additional parameters? For example, I can of course type `SOMEENVAR=foo gedit --some-arg... (more) |
— | 13 days ago |
| Comment | Post #289646 |
I don't have time to write a full answer.
However, https://wiki.archlinux.org/title/HiDPI explains most of it. There are multiple graphics frameworks (GTK, Qt, etc) that each have their own separate configuration. Xorg itself also has global DPI settings which the graphics frameworks may or may no... (more) |
— | 13 days ago |
| Edit | Post #289646 | Initial revision | — | 13 days ago |
| Question | — |
How do I globally configure consistent DPI for GUI apps? How do I configure my system so that all GUI apps use a consistent DPI, without configuring each app individually? (more) |
— | 13 days ago |
| Edit | Post #289645 | Initial revision | — | 13 days ago |
| Question | — |
How to fix DPI for Spotify Spotify runs on my computer with higher DPI (bigger UI elements) than I'd like. How can I reduce it? (more) |
— | 13 days ago |
| Comment | Post #289619 |
A different IP. (more) |
— | 13 days ago |
| Edit | Post #289618 |
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— | 15 days ago |
| Edit | Post #289620 | Initial revision | — | 15 days ago |
| Answer | — |
A: How to get a new IP address from DHCP? Restarting NetworkManager should be enough: `sudo systemctl restart NetworkManger` (more) |
— | 15 days ago |
| Edit | Post #289619 | Initial revision | — | 15 days ago |
| Question | — |
How to get a new IP address from DHCP? How do I make my computer request a new IP from DHCP? I am using Arch with NetworkManager. (more) |
— | 15 days ago |
| Edit | Post #289616 |
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— | 15 days ago |
| Edit | Post #289618 | Initial revision | — | 15 days ago |
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A: How do you terminate a DHCP lease in OpenWrt? There is not a way to do this from the Web UI (LuCI). Instead: SSH into the router Delete the corresponding line from `/tmp/dhcp.leases` However, note that this is not enough to get a new IP. Clients tend to request a renewal of the IP they had before, and the router will grant it if it does... (more) |
— | 15 days ago |
| Edit | Post #289617 | Initial revision | — | 15 days ago |
| Question | — |
How do you terminate a DHCP lease in OpenWrt? I am testing some DHCP stuff, and I want to manually end a lease so I don't have to wait hours for them to expire. How can I do this with OpenWrt? (more) |
— | 15 days ago |
| Edit | Post #289616 | Initial revision | — | 15 days ago |
| Answer | — |
A: Static IP on wired LAN I did this with NetworkManager. `nmtui` to open the TUI interface and then select "Edit..." and the ethernet connection You can also use the equivalent GUI or CLI commands, but I find them harder to use Next to `IPv4 Configuration`, click `Show` to see connection details. Go to `Address... (more) |
— | 15 days ago |
| Edit | Post #289615 | Initial revision | — | 15 days ago |
| Question | — |
Dnsmasq vs. dnscrypt-proxy I am trying to run a DNS server on my LAN. I set it up where: Dnsmasq is the "initial" server that clients see Dnsmasq resolves internal domains, and handles overrides (such as if I want to block an ad domain) via its `dnsmasq.conf` file Dnscrypt-proxy also runs on the same machine, and dnsma... (more) |
— | 15 days ago |
| Comment | Post #289544 |
Trial and error it is then. :) (more) |
— | 24 days ago |
| Comment | Post #289541 |
>"bookmarked folders" would seem to be an OS-level (or at least window-manager-level) feature
Why? (more) |
— | 24 days ago |
| Comment | Post #289544 |
Do you know if there is official documentation on the syntax of this file? (more) |
— | 24 days ago |
| Edit | Post #289541 | Initial revision | — | 24 days ago |
| Question | — |
Where does GtkFileChooserDialog store bookmarks? I have some bookmarked folders in GtkFileChooserDialog. I want to add these to my dotfiles. Where are the bookmarks stored? (more) |
— | 24 days ago |
| Edit | Post #289510 | Initial revision | — | 30 days ago |
| Question | — |
Run a command *later* How can I run a command later? I'm looking for a CLI way to schedule a command to be run later. I know that I could create a systemd timer, install it, activate it... That is too much work. I want something like `runlater 10min somecmd` and `somecmd` runs 10 min later. I don't want to do `sleep... (more) |
— | 30 days ago |
| Comment | Post #289492 |
Exactly what I was hoping for! Magic, indeed. (more) |
— | about 1 month ago |
| Comment | Post #289489 |
Ripgrep for example has a great way of handling cases. If query is all lower case, it does case insensitive. If it has upper case chars, it is case sensitive. You can also force case sensitive with a switch. (more) |
— | about 1 month ago |
| Comment | Post #289489 |
Case sensitive search is annoying, no fuzzy search, a lot of complex hotkeys that are hard to remember... (more) |
— | about 1 month ago |
| Edit | Post #289490 | Initial revision | — | about 1 month ago |
| Answer | — |
A: Ergonomic way to search man pages Not a real answer, but these days there are some nice LLM models and they're good at summarizing text. If you have the CLI scripts to interact with them, you can submit the man page as the "system prompt" (in ChatGPT parlance) and ask the question in the "user prompt". This will be somewhat slow a... (more) |
— | about 1 month ago |
| Edit | Post #289489 |
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— | about 1 month ago |
| Edit | Post #289489 | Initial revision | — | about 1 month ago |
| Question | — |
Ergonomic way to search man pages You often have to read man pages to use Linux/Unix software. However, many man pages are not easy to read. They are very long, not always conveniently arranged, and `man` does not appear to have any way to handle indices or sections. A great example is `man rsync`. I am often in a situation where ... (more) |
— | about 1 month ago |
| Edit | Post #289487 | Initial revision | — | about 1 month ago |
| Question | — |
Highlight regions in an image with CLI I have an image (a photo) and I want to highlight certain parts of this. I want to do this from the CLI. I am planning to store the pixel coordinates of polygon vertices in a file, and when I run a script, a new image should be applied with the polygons highlighted. I am going to be making a lot o... (more) |
— | about 1 month ago |
| Edit | Post #289466 |
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— | about 1 month ago |
| Edit | Post #289466 | Initial revision | — | about 1 month ago |
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A: Internet connection and touchpad not working on Ubuntu 22.04 after a force shut down This won't be an exact answer. I think with the way it's described, there could be many reasons why the issue manifests. However, the good news is that the live ISO works, therefore the problem is NOT a bug in the Linux kernel or Ubuntu OS. I think that if you did a fresh install of Ubuntu, your h... (more) |
— | about 1 month ago |
| Edit | Post #289463 |
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— | about 1 month ago |
| Edit | Post #289463 | Initial revision | — | about 1 month ago |
| Question | — |
Do I have to update Guix frequently like Arch? Guix is a rolling release distro. Another well known rolling release distro is Arch Linux. In Arch, you are expected to frequently do system updates. Partial updates are not supported. In my experience, what happens when you try to partially update package `X`, it turns out it now depends on packa... (more) |
— | about 1 month ago |
| Edit | Post #289462 | Initial revision | — | about 1 month ago |
| Question | — |
Do you still need to update archlinux-keyring before pacman -Syu? For some time pacman used to have a problem where: Occasionally Arch maintainers introduce new GPG keys They start signing packages with the keys Your local pacman doesn't receive these until you update `archlinux-keyring` When you do a full system update, some new packages are signed with ... (more) |
— | about 1 month ago |
| Edit | Post #289454 | Initial revision | — | about 1 month ago |
| Question | — |
Low impact trial installation of Guix to test hardware compatibility I like how Guix sounds based on what I've read, and I want to try it. However, my partitioning scheme is a bit complicated. With Guix it appears like my biggest concern is hardware (I will regrettably need the non-free drivers). So I don't want to resize and move my partitions around, install Guix, o... (more) |
— | about 1 month ago |
| Comment | Post #289380 |
It seems like "encryption" doesn't really answer my question in that case. (more) |
— | about 1 month ago |
| Edit | Post #289441 | Initial revision | — | about 1 month ago |
| Question | — |
Static IP on wired LAN I have an Arch Linux machine connected to a LAN by ethernet. The router runs OpenWRT. DHCP assigns IPs to this machine like `192.168.1.` - quite typical. I want the IP to always be `192.168.1.10`. Ideally, I would like to do this through configuration on the machine only, without configuring an... (more) |
— | about 1 month ago |
| Comment | Post #289432 |
Since it works on Windows, it must not be a hardware issue. Next step would be, is it your config or Ubuntu itself. To settle that, what happens with an Ubuntu LiveCD? (more) |
— | about 1 month ago |
| Comment | Post #289380 |
What I'm saying is, the logic in this answer appears to be:
> Encrypt the SSD, and then it doesn't matter if people can recover the data because they wouldn't be able to decrypt it
However, the flaw in this logic appears to be:
> If your encryption key happens to leak, you can no longer cons... (more) |
— | about 1 month ago |
| Comment | Post #289401 |
There is no such command.
```
$ systemctl start-follow
Unknown command verb start-follow.
``` (more) |
— | about 1 month ago |
| Edit | Post #289425 | Initial revision | — | about 1 month ago |
| Answer | — |
A: How do I make media keys work with PipeWire? I was able to make this work with: ``` bindsym XF86AudioRaiseVolume exec --no-startup-id wpctl set-volume -l 1 @DEFAULTAUDIOSINK@ 5%+ bindsym XF86AudioLowerVolume exec --no-startup-id wpctl set-volume @DEFAULTAUDIOSINK@ 5%- bindsym XF86AudioMute exec --no-startup-id wpctl set-mute @DEFAULTAUDIO... (more) |
— | about 1 month ago |
| Edit | Post #289385 | Initial revision | — | about 1 month ago |
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A: How do you eval SSH agent output in fish? There are three options. I will list them from least practical to most, because I don't want people to stop reading halfway through :) Parse ssh-agent output with your custom script and re-print it in fish syntax. Always straightforward, but technically makes too many assumptions about the exact ... (more) |
— | about 1 month ago |
| Edit | Post #289384 | Initial revision | — | about 1 month ago |
| Question | — |
How do you eval SSH agent output in fish? SSH agent prints some envar commands for sourcing in a shell. However, these are bash-style, and I use fish. Fish barfs at the bash syntax. How can I fix it? (more) |
— | about 1 month ago |
| Edit | Post #289383 | Initial revision | — | about 1 month ago |
| Answer | — |
A: SSH key added to agent, but keeps asking for password After some digging, I was able to figure out the problem. I actually have multiple keys. In Kwallet, I noticed that one of them has the wrong passphrase. So looks like I put the passphrase of Key X for both keys X and Y, and now Y is failing (because that's the wrong passphrase). It looks like Kwalle... (more) |
— | about 1 month ago |
| Edit | Post #289382 | Initial revision | — | about 1 month ago |
| Question | — |
SSH key added to agent, but keeps asking for password I have my key added to `ssh-agent` and they show up in `ssh-add -l`. When I try to actually SSH to a host that requires the key, I still get prompted for a password. I enter it again and again and it seemingly refuses to cache it. Frustratingly, this configuration is copied between several compute... (more) |
— | about 1 month ago |
| Comment | Post #289380 |
Of course, you would still have the secure erase problem if you leaked the key, because you can no longer consider the cryptodisk secure.
I get that there is variation between hardware implementations. For that matter, same could be said for magnetic HDDs. But at the end of the day, I doubt all th... (more) |
— | about 1 month ago |
| Edit | Post #289378 |
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— | about 1 month ago |
| Edit | Post #289378 | Initial revision | — | about 1 month ago |
| Question | — |
How to securely erase data from a thumb (solid state) drive How do you securely erase data from a thumb (USB/flash) drive? With traditional (magnetic/spinny) hard drives, it used to be that you could use various tools to simply overwrite with random data, and make it unrecoverable. You even have tools like `shred` that can do it for a specific file. Man... (more) |
— | about 1 month ago |
| Edit | Post #289354 |
Post edited: |
— | about 1 month ago |
| Comment | Post #289354 |
Let me edit the answer. I figured the cache would be easy to figure out from what I posted, but sounds like it's not. (more) |
— | about 1 month ago |
| Comment | Post #289354 |
Honestly, I've ran into such issues with it as well. It seems like `xdg-open` is supposed to be the final word, but sometimes isn't. I despise this tool for that reason, but we seem stuck with it.
The file associations are actually cached, and I think after changing one you also have to reload the... (more) |
— | about 1 month ago |
| Edit | Post #289370 | Initial revision | — | about 1 month ago |
| Question | — |
What does Gnome Disks "erase" do? When formatting drives with Gnome Disks, there is an option to "Erase". The help text says this takes longer, but "completely" erases data. What exactly does this option do? Is there a CLI equivalent to it? (more) |
— | about 1 month ago |
| Edit | Post #289354 | Initial revision | — | about 1 month ago |
| Answer | — |
A: How to change the default app for opening directories in Gnome? I don't use Gnome, but I'm guessing it relies on `xdg-open` to figure out what program to use. Your first step would be to do `xdg-open ` to see if it uses the same incorrect program. If so, great - you can troubleshoot xdg-open. If not, Gnome decided to write their own file association resolver t... (more) |
— | about 1 month ago |
| Edit | Post #289302 | Initial revision | — | about 1 month ago |
| Question | — |
How to let systemd user unit see keys in SSH agent? I have a script that does `git fetch` for a repository. When I run this in my shell it works fine. I want to run it in a systemd user unit. However, I am using an SSH url, and the systemd unit fails with `fatal: Could not read from remote repository.'` (Git exit code 128). This is probably beca... (more) |
— | about 1 month ago |
| Edit | Post #289301 | Initial revision | — | about 1 month ago |
| Question | — |
Starts systemd service and follow log I can start services with `systemctl start`. I can see logs with `systemctl status` or `journalctl`. But by the time I run the second the process has already started. I'd like to `start` a service and immediately be dropped into the live log from it, similar to `docker run` for example. How can I do ... (more) |
— | about 1 month ago |
| Comment | Post #289300 |
And furthermore, systemd should be destroyed. :) (more) |
— | about 1 month ago |
| Edit | Post #289300 | Initial revision | — | about 1 month ago |
| Question | — |
How to create systemd unit that depends on a website being up? I'm going to write some systemd services. All of these can only be run if a certain website is up. I thought I could create a `/.config/systemd/user/website.service` this: ``` [Unit] Description=Confirm that example is up Wants=network-online.target After=network-online.target nss-lookup.targe... (more) |
— | about 1 month ago |
| Edit | Post #289227 | Initial revision | — | about 2 months ago |
| Question | — |
GUI apps stop working until next boot after some system upgrades My system occasionally has an issue that looks like this: I run `pacman -Syu` Many things get updated Many GUI apps (including all display managers and Xorg) start refusing to run and throw up OpenGL errors, if I try to restart the display manager I get stuck in TTY with no GUI At next rebo... (more) |
— | about 2 months ago |
| Edit | Post #289201 | Initial revision | — | about 2 months ago |
| Question | — |
What does the "Valid" column mean in the output of "faillock"? I was looking into unlocking my login after too many incorrect password attempts. I found this post about it. Doing `faillock -user $(whoami) --reset` did indeed unlock the login. However, what exactly is the output of `faillock` and how do I interpret it? When I ran it while I was locked out, ... (more) |
— | about 2 months ago |
| Edit | Post #289105 |
Post edited: The answer is very different for not-gnome |
— | about 2 months ago |
| Edit | Post #289140 | Initial revision | — | about 2 months ago |
| Question | — |
How to change keyboard layout without a DE? I am running X on Arch Linux without a desktop environment, only i3. Sometimes I need to switch between typing in different languages. How do I switch my keyboard layout? (more) |
— | about 2 months ago |
| Suggested Edit | Post #289105 |
Suggested edit: The answer is very different for not-gnome (more) |
helpful | about 2 months ago |
| Edit | Post #289138 | Initial revision | — | about 2 months ago |
| Answer | — |
A: How can I change the timeout after too many incorrect login attempts? This appears to be set by the option `unlocktime` in `/etc/security/faillock.conf`. (more) |
— | about 2 months ago |
| Edit | Post #289137 | Initial revision | — | about 2 months ago |
| Answer | — |
A: Increase incorrect login attempts before locking account This appears to be set by the option `deny` in `/etc/security/faillock.conf`. (more) |
— | about 2 months ago |
| Edit | Post #289136 | Initial revision | — | about 2 months ago |
| Question | — |
How can I change the timeout after too many incorrect login attempts? When I enter the login password incorrectly 3 times, my computer locks me out from attempting a login for 10 minutes. How can I change the timeout? (more) |
— | about 2 months ago |
| Edit | Post #289135 | Initial revision | — | about 2 months ago |
| Question | — |
Increase incorrect login attempts before locking account When I enter the login password incorrectly 3 times, my computer locks me out from attempting a login for 10 minutes. How can I increase the number of attempts? (more) |
— | about 2 months ago |
| Edit | Post #289037 |
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— | 2 months ago |
| Edit | Post #289037 |
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— | 2 months ago |
| Edit | Post #289037 | Initial revision | — | 2 months ago |
| Question | — |
How do I set up my own DNS on my LAN, with delegation of public domains? I want to have a local DNS server on my home LAN, say at `192.168.1.123`. All of my machines will use `192.168.1.123` as their only DNS server when connected to my home network. By default, my DNS server will process requests by checking them with a public DNS service on the internet. I am plannin... (more) |
— | 2 months ago |
| Edit | Post #289026 |
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— | 2 months ago |
| Edit | Post #289026 | Initial revision | — | 2 months ago |
| Answer | — |
A: Copy to clipboard from terminal with Vim bindings Vim has multiple "registers", which in modern parlance is multiple internal clipboards. By default, `y`ank sends to an anonymous register, which is separate from the clipboard. However, you can make it send to other registers. The registers `` and `+` in particular are interesting, because they ha... (more) |
— | 2 months ago |
| Edit | Post #289025 | Initial revision | — | 2 months ago |
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A: Copy to clipboard from terminal with Vim bindings I use kitty as my terminal, which allows you to map a key for copying any text from the screen to the keyboard. The text is selected by pressing some hint keys, similar to the Vimium extension. It's quite flexible but I mostly use "copy line" and "copy word". This just works with clipboard manager... (more) |
— | 2 months ago |
| Comment | Post #288934 |
I consider them whitespace. (more) |
— | 2 months ago |
| Comment | Post #288970 |
@#63646 Evidently, Docker Desktop (which is probably what you would use on windows) supports both: https://learn.microsoft.com/en-us/windows/wsl/tutorials/wsl-containers Either should work. You should skim the instructions for both and see which one is easier.
I don't have much experience with Doc... (more) |
— | 2 months ago |
| Edit | Post #288970 | Initial revision | — | 2 months ago |
| Answer | — |
A: How to start MariaDB (or MySQL) server on a WSL using systemctl? `systemctl` is a tool for controlling systemd, the "new" Linux init system (actually it's been widely used for 10 years now). Systemd is the first process that runs at boot, which then brings up all the rest of the OS. It also handles various background processes like system services. WSL does not... (more) |
— | 2 months ago |
| Comment | Post #288962 |
It's https://github.com/sharkdp/bat. I assume people would search for something like `bat linux` :)
Yes, the Python code can be improved. But I'm wondering if someone has already written such a program, which is in wide circulation, before I go off maintaining my own. (more) |
— | 2 months ago |
| Edit | Post #288962 | Initial revision | — | 2 months ago |
| Answer | — |
A: Simplest way of stripping leading/trailing whitespace from file or program output I'll post this as an example of what I'm looking to do. The following script: ```python import sys a = sys.stdin.read() b = a.strip() c = map(lambda s: s.strip(), b.splitlines()) for s in c: print(s) ``` Will remove: Whitespace at the beginning and end of the file or stream ... (more) |
— | 2 months ago |
| Edit | Post #288934 |
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— | 2 months ago |
| Edit | Post #288934 |
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— | 2 months ago |
| Edit | Post #288934 | Initial revision | — | 2 months ago |
| Question | — |
Simplest way of stripping leading/trailing whitespace from file or program output What is the simplest shell idiom for stripping leading and trailing whitespace from a file or program output? Ideally I am looking for the equivalent of `trim` or `strip` methods in some languages. The ideal solution should skip empty lines at the beginning and end of the file/stream provide a... (more) |
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| Edit | Post #288933 |
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| Edit | Post #288933 |
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| Edit | Post #288933 | Initial revision | — | 2 months ago |
| Answer | — |
A: What unexpected things can happen if a user runs commands expecting a text file on input lacking a file-final newline? I tried to think of some for a while, but couldn't find any good ones. That said, there's plenty of programs I don't know. For reference: ``` $ echo -en "hello\nworld" | tee 1.txt | bat -A ───────┬───────────────────────────────────────── │ STDIN │ Size: - ───────┼──────────────... (more) |
— | 2 months ago |
| Comment | Post #288915 |
>some commenters argued that the original short version was unanswerable because you'd have to check every implementation of every Unix/Linux command
🙄
It sounds like your question would be satisfied with just some general rules of thumb + a few illustrative real world examples, and you're not ... (more) |
— | 2 months ago |
| Comment | Post #288915 |
As a programmer and Unix philosophy adherent, I write many programs, many of them taking textual input on the terminal. I would die of shame if someone ever found a bug in my programs where they break just because of a terminal newline. It would be like taking an IQ test and getting a double digit sc... (more) |
— | 3 months ago |
| Comment | Post #288915 |
This reads a bit like a rant disguised as a question. Superficially, you're asking what problems can happen if you omit the terminal newlines, but really you spend a lot of time explaining how the answer is "nothing, that rule is dumb" (which I agree with, btw). It doesn't really read like a genuine ... (more) |
— | 3 months ago |
| Comment | Post #288915 |
Uh, wait, how does being closed on SX cause it to be verbose? Is it because they nagged the original asker into adding a lot of detail? I think the whole point of this site is that the moderation policy is different than SX, so it might be better to ask the question the way it should have been asked ... (more) |
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| Comment | Post #288913 |
It seems like `pamixer --sink 123 -i 10` works. In my case, looks like the device which gets used as a default sink is not the one I have connected. So the problem with this command is to figure out which sink should be used. (more) |
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| Edit | Post #288913 | Initial revision | — | 3 months ago |
| Question | — |
How do I make media keys work with PipeWire? My keyboard has keys for mute, volume up, volume down. In i3wm, I used to have these bound with: ``` bindsym XF86AudioRaiseVolume exec --no-startup-id pulsemixer --change-volume +10 --max-volume 100 bindsym XF86AudioLowerVolume exec --no-startup-id pulsemixer --change-volume -10 --max-volume 100 ... (more) |
— | 3 months ago |
| Edit | Post #288912 | Initial revision | — | 3 months ago |
| Question | — |
PipeWire separates the audio of every program, how do I combine them? I uninstalled PulseAudio and installed PipeWire. It seems like now, every application gets an independent audio configuration. When I go into pavucontrol I see "Spotify" where I configure the volume and output device that Spotify sends sound to. But if I also open a Youtube video in my browser, th... (more) |
— | 3 months ago |
| Edit | Post #288911 | Initial revision | — | 3 months ago |
| Question | — |
Is PipeWire easier to use than PulseAudio? I have always found PulseAudio to be difficult to use and overcomplicated. Recently I also discovered that it is written by Lennart Poettering, whom I dislike. I am now very motivated to use something else. But configuring sound is also not my passion, I just want sound to work on my computer as I pl... (more) |
— | 3 months ago |
| Edit | Post #288908 | Initial revision | — | 3 months ago |
| Answer | — |
A: How to install mysql-server on Debian? MySQL is not fully open source and maintained by a corporation which was at one time regarded as very evil (there are much worse ones now). Debian is trying to protect you from yourself by not letting you install it. MariaDB is a project developed from forked MySQL code, and designed to be a drop ... (more) |
— | 3 months ago |
| Comment | Post #288849 |
There shouldn't be any future problem. MariaDB was specifically designed to be a drop in replacement for MySQL, in exactly this type of situation. (more) |
— | 3 months ago |
| Comment | Post #288309 |
>break down any one liners into their constituent parts, explaining each of them
This is what I tend to do as well, and yes it is laborious. Instead I suggest that *just breaking down the steps* and linking to the question explaining each step should be considered a sufficient answer. And if the q... (more) |
— | 3 months ago |
| Comment | Post #288562 |
@#53919 You are right that part of the question stems from a confusion over what's due to missing shell escapes, what's due to missing regex escapes, and what's because of whatever flavor of regex is being used for the sed invocation. Naturally, an answer should address this point as well.
To clar... (more) |
— | 3 months ago |
| Comment | Post #288562 |
That syntax would actually solve my problem, except that I couldn't get it to work. `b+` is a valid regex meaning "1 or more `b`'s" and the `s/b+/X/` should instruct `sed` to replace each occurence of `b+` with `X`. My input `abc` should therefore be transformed to `aXc`.
But I get:
```
$ echo a... (more) |
— | 3 months ago |
| Comment | Post #288544 |
Hmm. I assumed there was just a single obvious program that is the culprit. This was a big pacman update, so it's hard to say exactly why it was. I can keep an eye on it in future updates. What exactly would I do with `rmmod`/`modprobe`? Are there any useful keywords to look for in the pacman log? (more) |
— | 3 months ago |
| Comment | Post #288554 |
Well, between say 1000 small updates that each have 0.1% chance of breakage, and 1 big update that has a 10% chance to break, there's not a huge difference. Both ways break rarely on Arch anyhow.
Normally, whenever I get on my computer, I have several things which are vastly more interesting to do... (more) |
— | 3 months ago |
| Comment | Post #288554 |
Thanks! I think it's probably better to use `pacman -Sywu` - might as well refresh the repos if we're trying to pull in latest updates.
I did test this and it works. (more) |
— | 3 months ago |
| Edit | Post #288544 | Initial revision | — | 3 months ago |
| Question | — |
After update, OpenGL does not work until reboot Whenever I do a big system update, OpenGL stops working until the next reboot. This also prevent OpenGL apps from launching. Example: ``` $ glxgears X Error of failed request: BadValue (integer parameter out of range for operation) Major opcode of failed request: 151 (GLX) Minor opcode ... (more) |
— | 3 months ago |
| Edit | Post #288543 | Initial revision | — | 3 months ago |
| Question | — |
Download packages for full system upgrade without installing I noticed that downloading all the pacman packages for a full system install takes a lot of time, so I want to create a systemd time that will periodically download them for me. That way, most of the time the cache will be fresh, and when I actually do update them, most will not need to be re-downloa... (more) |
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| Edit | Post #288542 | Initial revision | — | 3 months ago |
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A: How to debug NetworkManager issue after suspend/resume in Ubuntu 22.04 Although you have left a post saying it is solved, I think it's not uncommon for this kind of problem to show up. I think it can happen due to misconfiguration of either NM or the network drivers/hardware. It would be more useful to have a general troubleshooting question for dealing with NM timeouts... (more) |
— | 3 months ago |
| Comment | Post #288541 |
I decided to create the tag `quotes` for this, to represent question to do with escaping strings in shells. I think it's a more direct and obvious term than `escaping` for example. Anyhow, I'd love to add a description to the tag, but I couldn't figure out how to do it. (more) |
— | 3 months ago |
| Edit | Post #288541 | Initial revision | — | 3 months ago |
| Question | — |
Can I enter raw strings in fish to avoid escaping regexes for sed? When running `sed` through `fish`, I often encounter a problem with regexes. Many commonly used regex control characters like `[]{}().+` need to be escaped, even if I type the regex in a single quoted string. For example: ``` $ echo abc | sed 's/b+/X/' abc $ echo abc | sed 's/b\+/X/' aXc ``... (more) |
— | 3 months ago |
| Comment | Post #288318 |
That's a good idea - I'll give it a try next time I run into this.
With `bwrap`, it is indeed possible to capture diagnostics both inside and outside. Outside will include the activity of bwrap itself on top of what the program inside does. Both might be interesting in this case. (more) |
— | 3 months ago |
| Comment | Post #288318 |
@#58118 Interesting - I'm not sure if that's true, but it would certainly explain it if so. Any idea on how I can confirm it? (more) |
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| Comment | Post #288436 |
Usually "number of cores" is a good starting value for `n`. (more) |
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| Edit | Post #288316 |
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| Comment | Post #288332 |
I know you said you want to avoid a reinstall, but actually it wouldn't be too hard to do. You would:
1. Backup the `/home` somewhere (easier if `/home` is its own partition)
2. Get list of all explicitly installed packages from apt
3. Wipe everything else
4. Install fresh Debian with same user... (more) |
— | 3 months ago |
| Comment | Post #288332 |
It's been a while since I used Debian, but what if you simply:
* Ask `apt` to export a list of packages that came from unstable (you want to make sure that you ask for those explicitly requested, and not just dependencies)
* Uninstall them all (and their dependencies)
* Remove `unstable` from `/... (more) |
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| Edit | Post #288311 |
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| Edit | Post #288401 |
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| Edit | Post #288401 | Initial revision | — | 3 months ago |
| Question | — |
Are there any legitimate uses for newlines in filenames? Unix is very permissive with filenames, and this can sometimes lead to a bunch of annoying corner cases when printing files. A well known example is when you put a newline in a filename, and it breaks naive parsing of a file list later in the pipeline. There's not much mystery around why Unix deci... (more) |
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| Edit | Post #288311 |
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| Comment | Post #288311 |
Does `find` also have that problem? I thought that was a concern just for `ls`. (more) |
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| Comment | Post #288334 |
Fontbase looks really nice! I see that it is freeware, but I think it's not open source, right? (more) |
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| Comment | Post #288329 |
NB: I'm not marking "works for me" to encourage other folks to post better answers (if they want). For example, I've only addressed Bash, which is honestly a pretty bad choice of shell in this day and age.
Also, it technically doesn't work for me, because I use fish. :) I have no idea what the syn... (more) |
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| Edit | Post #287901 |
Post edited: Add tags |
— | 3 months ago |
| Comment | Post #287333 |
There are ways to add it to the PATH, but is this really what you want? The way you installed Python is unusual. Normally people install it from a package manager, which will create a symlink in `/usr/bin/` which is already in `PATH`. If your distro has old Python, you can try something like pyenv. (more) |
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| Edit | Post #288318 |
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| Edit | Post #288323 |
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| Edit | Post #288329 | Initial revision | — | 3 months ago |
| Answer | — |
A: When a command takes filenames as argument, how can I avoid creating temporary files? What you're looking for is called process substitution. In Bash and many bash-like shells, you can use `<(foocommand --with --arguments)` instead of the file path: ``` diff <(ls /home/alice) <(ls /home/bob) ``` (more) |
— | 3 months ago |
| Edit | Post #288328 | Initial revision | — | 3 months ago |
| Question | — |
When a command takes filenames as argument, how can I avoid creating temporary files? Suppose I have a command that takes filenames as arguments, like: `diff foo.txt bar.txt` What if instead of actual files, I want to use the results of a command in each? I can use temporary files: ``` ls /home/alice > /tmp/alice.txt ls /home/bob > /tmp/bob.txt diff alice.txt bob.txt ``` ... (more) |
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| Edit | Post #288324 | Initial revision | — | 3 months ago |
| Answer | — |
A: How do I use Proton without Steam? This can be done with Wine Bottles. 1. Install flatpak from your package manager. 2. Install Bottles from Flatpak (may show up as `Discover (Software Center)`) May take a while, because it has many dependencies and flatpak does not support parallel downloads 3. Run Bottles. You may need to... (more) |
— | 3 months ago |
| Comment | Post #288323 |
There's instructions for this floating around the net where you rip the proton files out of Steam's own dir and then run the binary directly. You can even "acquire" the files with an empty Steam account by downloading a free game. However they're all on weird forums that are a total mess to read, and... (more) |
— | 3 months ago |
| Edit | Post #288323 | Initial revision | — | 3 months ago |
| Question | — |
How do I use Proton without Steam? I can easily run Windows games with wine by running: ``` wine game.exe ``` However, if I want to use Proton I have to run Steam, add the game as a non-Steam game, and run it that way. Since Proton is just a modified Wine runtime, is there a way to use a game with Proton without involving S... (more) |
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| Edit | Post #288322 | Initial revision | — | 3 months ago |
| Question | — |
Why is there a mono version of Inconsolata? After installing the InconsolataGo font from the Arch package `extra/ttf-inconsolata-go-nerd`, I see there is an `Inconsolata Nerd Font, Regular` and an `Inconsolata Nerd Font Mono, Regular`. Both are monospace. This seems common with fonts that are intended as fixed width. Why is there two identi... (more) |
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| Comment | Post #288320 |
This works! I'm still interested in better options than the Gnome app - in particular better interface. (more) |
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| Edit | Post #288318 | Initial revision | — | 3 months ago |
| Question | — |
Why do many Windows games fail when the network is sandboxed? I run Windows games with Wine, and use `bwrap` to sandbox them. I've noticed that passing `--unshare-net` to disable the network breaks many, many games (they fail to start with no obvious error message). However, at the same time, if I do `nmcli networking off` instead of `--unshare-net` the game la... (more) |
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| Edit | Post #288317 | Initial revision | — | 3 months ago |
| Question | — |
How do you troubleshoot bwrap/wine sandboxes for Windows games? I use Wine to play Windows games. As is well known: Wine is not a sandbox Windows games are proprietary blobs and can contain malware Windows malware can potentially harm Linux through Wine I don't want malware having free reign on my Linux machine so I sandbox it with bwrap. For the less-... (more) |
— | 3 months ago |
| Edit | Post #288316 | Initial revision | — | 3 months ago |
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A: When should you install windows dlls for wine with winetricks? Windows packages all of its API functions into DLLs, so when you have a program that relies on calls to X, Y and Z you must ensure that you have the correct set of DLLs that provide all of those. The exact organization of which X, Y and Z goes into which DLL is complicated and depends on: Three d... (more) |
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| Edit | Post #288314 |
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| Edit | Post #288314 | Initial revision | — | 3 months ago |
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A: Recursively remove files with the same name as the ones that end in `.part` For each file named `foo.xyz`, you want to delete `foo.xyz.part`. It doesn't matter if `foo.xyz.part` exists, you can just attempt it and skip errors. You can get a list of all files with `find` etc. But you don't want the ones with `.part`, so you use grep to take them out: `find | grep -v '\.par... (more) |
— | 3 months ago |
| Comment | Post #287901 |
This is a long and complex function and I don't think it makes sense to expect people to debug the whole thing.
* Does your `cd` function even work when shadowing the builtin `cd`? Rename it to `mycd` and make it just do `cd /tmp/`.
* Does your fzf command actually return the directory you need? ... (more) |
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| Comment | Post #287901 |
Which shell is this? (more) |
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| Suggested Edit | Post #287901 |
Suggested edit: Add tags (more) |
helpful | 3 months ago |
| Edit | Post #288313 | Initial revision | — | 3 months ago |
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A: How to get number of files in directory The obvious way to do it is: 1. Find some way to get a list of the files 2. Pipe it into `wc` to count Classically, this would be `find /path/to/dir | wc`. However `fd` does the same thing with better usability. By default, `fd` will skip "hidden" files and directories (like `.foo`) and will i... (more) |
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| Edit | Post #288311 |
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| Edit | Post #288312 |
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| Edit | Post #288312 | Initial revision | — | 3 months ago |
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A: How to convert Flac to Mp3 with FFmpeg? I see that this is self-answered, but I disagree that the answer provided is the best way. The best way is to properly utilize the Unix philosophy, by decomposing the problem into simpler sub-problems. It is probably not hard to figure out how to convert a single file `foo.flac` into `foo.mp3`. I'... (more) |
— | 3 months ago |
| Edit | Post #288311 | Initial revision | — | 3 months ago |
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A: How to run a command on a list of files? There are several options, like `xargs` and `for`. I'll leave those for other answers and only describe my favorite, GNU Parallel. You will have to install it separately, because unlike the inferior `xargs` it usually does not come pre-installed. Parallel can take a list of files on STDIN and run ... (more) |
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| Edit | Post #288310 | Initial revision | — | 3 months ago |
| Question | — |
How to run a command on a list of files? Suppose I have a list of files on standard input. These may be the output of `find`, `cat filelist.txt` or something else. How can I run a command on each file in turn? (more) |
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| Edit | Post #288309 | Initial revision | — | 3 months ago |
| Question | — |
Decomposing compound questions The basis of the Unix philosophy is to decompose complex tasks into simple sub-tasks, so that one can easily choose a combination of simple Unix tools to solve the problem in an intuitive way. Often I see newbies ask questions along the lines of "how do I X complicated and specific thing". The gre... (more) |
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| Edit | Post #288306 | Initial revision | — | 3 months ago |
| Question | — |
How do I view fonts? How can I view font files, like `.ttf`, in Linux? I'd like to see a sample of the font (quick brown fox...) and metadata about it (like exact name). (more) |
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| Comment | Post #288259 |
Thanks for the response @#8046 ! I do like the idea of doing away with the accepted answers - but the only thing is, how will people find questions that need improvement? I wasn't aware of:
>We did recently add filters for the category list; "unanswered" means no answers with positive score, as op... (more) |
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| Edit | Post #288259 | Initial revision | — | 3 months ago |
| Answer | — |
A: How can we grow this community? Don't answer too many questions Avoid major tag gaps Keep the front page lively. My armchair analysis is that the funnel for this site is like this: 1. User gets linked from internet search or elsewhere Non-early adopters drop here because they don't want to bother clicking on some u... (more) |
— | 3 months ago |