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Q&A

General Q&A about Linux and Unix-like operating systems

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50%
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Intel® Centrino® Advanced-N 6205 not found in Debian

I was installing Debian. But, I know that I have installed wireless connection system manually in Debian. are e needs non-free firmware files to operate. The firmware can be h as a USB stick o...

2 answers  ·  posted 3y ago by deleted user  ·  edited 1y ago by Canina‭

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How can I access Manjaro without any error? (I had installed two grub-loader)

I was using Manjaro. And, I had Windows alongside Manjaro. I have installed Debian without "removing" any OS (I had removed Prime OS). And, I was using grub-loader of Manjaro earlier (Manjaro's gru...

1 answer  ·  posted 3y ago by deleted user  ·  last activity 3y ago by deleted user

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+0 −0
Automated wifi 'scavenging', daemon recommendation?

I have a RPi in the car that I need to act as a mobile AP. I need it to provide a consistent, unchanging ESSID (in AP mode) using the onboard wlan0 for all devices that stay in my car. Dashcams, t...

0 answers  ·  posted 2y ago by re89j‭

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Why does a reverse hexdump truncate the message?

$ echo "4c 6f 72 65 6d 20 69 70 73 75 6d 20 64 6f 6c 6f 72 20 73 69 74 20 61 6d 65 74 2c 20 63 6f 6e 73 65 63 74 65 74 75 72 20 61 64 69 70 69 73 63 69 6e 67 20 65 6c 69 74 2c" | xxd -r orem ipsum...

1 answer  ·  posted 9mo ago by TRiG‭  ·  edited 9mo ago by Canina‭

xxd
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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?

1 answer  ·  posted 9mo ago by matthewsnyder‭  ·  last activity 9mo ago by matthewsnyder‭

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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?

1 answer  ·  posted 9mo ago by matthewsnyder‭  ·  last activity 9mo ago by mr Tsjolder‭

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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...

0 answers  ·  posted 9mo ago by matthewsnyder‭

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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, ...

1 answer  ·  posted 8mo ago by matthewsnyder‭  ·  edited 8mo ago by matthewsnyder‭

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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 s...

1 answer  ·  posted 8mo ago by matthewsnyder‭  ·  last activity 8mo ago by matthewsnyder‭

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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?

1 answer  ·  posted 8mo ago by matthewsnyder‭  ·  last activity 8mo ago by matthewsnyder‭

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+0 −0
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 regretta...

0 answers  ·  posted 8mo ago by matthewsnyder‭

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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 ...

0 answers  ·  posted 8mo ago by matthewsnyder‭

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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 blo...

0 answers  ·  posted 8mo ago by matthewsnyder‭

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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?

1 answer  ·  posted 8mo ago by matthewsnyder‭  ·  last activity 8mo ago by matthewsnyder‭

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How to get a mailto: URI out of abook(1)

I store my address book with abook(1). https://manpages.debian.org/bookworm/abook/abook.1.en.html Let's say I want to introduce some contact in some field that accepts the usual name <email&gt...

1 answer  ·  posted 7mo ago by alx‭  ·  last activity 7mo ago by alx‭

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How to list the first x files in each directory

MWE With the following tree: l1 └── l2 ├── d0 │   ├── f0 │   ├── f1 │   ├── f2 │   ├── f3 │   ├── f4 │   └── f5 ├── d1 │   ├── f0 │   ├── f1 ...

3 answers  ·  posted 7mo ago by mcp‭  ·  last activity 7mo ago by matthewsnyder‭

50%
+0 −0
Run command with Key Combination in Gnome

Is there a way in Ubuntu (22.04) to run a given bash command for a given Key combination in Gnome (42.9)? This Ubuntu is running in Hyper-V on a Win10 host. (I would like to run the setxkbmap us a...

1 answer  ·  posted 6mo ago by Arpad Horvath‭  ·  last activity 6mo ago by matthewsnyder‭

50%
+0 −0
How to see VRAM with inxi?

What switches do I need to add to see my video RAM (VRAM) with inxi? inxi -G shows my video card model and other info, but not video RAM.

1 answer  ·  posted 6mo ago by matthewsnyder‭  ·  last activity 5mo ago by matthewsnyder‭

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Can I confine an executable inside a Docker container using a host apparmor profile?

I'm trying to containerize an application that currently uses apparmor to confine Python. This allows sandboxing of user-submitted code. How can I get docker and apparmor to play well together? Cu...

0 answers  ·  posted 4mo ago by much‭

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Albert with compositor surrounded by ghost of other windows

On Arch Linux, I installed albert (from AUR) and picom as the compositor. I am using i3 as the window manager. When I bring up the albert window, it is surrounded by the ghost of a window in the b...

0 answers  ·  posted 4mo ago by matthewsnyder‭

50%
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How to check spam headers of EML file from command line?

If I have an email in EML format, how can I determine its spam status from the terminal? My mail provider appears to insert a X-Acme-Spam-Status header. It looks like X-Acme-Spam-Status: v=1; e=b...

0 answers  ·  posted 4mo ago by matthewsnyder‭

50%
+0 −0
How to find user's id (UID)?

How to lookup user-id with the user's name? E.g. What's the UID of user linus?

1 answer  ·  posted 3mo ago by Iizuki‭  ·  last activity 3mo ago by Iizuki‭

uid
50%
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What is Kmail running in the background?

When I run Kmail on i3, and then close it, it appears to continue running some stuff in the background. For example, I periodically get notifications about new mail from dunst, even though I have c...

0 answers  ·  posted 3mo ago by matthewsnyder‭

50%
+0 −0
ldapsearch: how to ignore certificate?

How to ignore server certificate when using ldapsearch command-line tool? Of course this isn't something you should be doing regularly, but it would be a handy asset for troubleshooting.

1 answer  ·  posted 2mo ago by Iizuki‭  ·  edited 2mo ago by Iizuki‭

50%
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How to add a new drive to a BTRFS filesystem?

BTRFS is capable of spanning over multiple drives. How to add one more to an existing filesystem?

1 answer  ·  posted 1mo ago by Iizuki‭  ·  last activity 1mo ago by Iizuki‭

50%
+0 −0
How to get remote container image digest with skopeo?

How to get the (index) digest of a remote container image with skopeo? So this would be your normal container image in a container registry. E.g. in docker.io

1 answer  ·  posted 20d ago by Iizuki‭  ·  last activity 20d ago by Iizuki‭

50%
+0 −0
How to export public GPG key?

GPG stores keys inside an internal database of some sort. How to export your public key in the familiar -----BEGIN PGP PUBLIC KEY BLOCK----- format so that it can be imported to other software? E.g...

1 answer  ·  posted 20d ago by Iizuki‭  ·  last activity 20d ago by Iizuki‭

GPG
50%
+0 −0
Get notifications to dunst when systemd units fail

How can I get notifications to dunst when systemd units fail?

1 answer  ·  posted 18d ago by matthewsnyder‭  ·  last activity 17d ago by Iizuki‭

50%
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Pacman list files installed by a package

How to show a list of files belonging to a package with pacman?

1 answer  ·  posted 15d ago by Iizuki‭  ·  last activity 15d ago by Iizuki‭

50%
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Systemd service status if ExecStop or ExecStopPost fails?

Will the overall unit status be failed if either ExecStop or ExecStopPost fail? I would expect it to be so, but the documentation isn't very explicit about it.

1 answer  ·  posted 7d ago by Iizuki‭  ·  last activity 7d ago by Iizuki‭

47%
+9 −10
Which Linux system to use?

Usually, many new users are confused when it comes to deciding which Linux to use. After trying out some distros, they don't know which one to use next. Which Linux is for beginners, intermediates ...

6 answers  ·  posted 2y ago by deleted user  ·  last activity 1mo ago by matthewsnyder‭

42%
+1 −2
sensors to histogram

I would want to... ... turn my sensors output into a live histogram. How to? Any available script already written? (✿◠‿◠)

1 answer  ·  posted 2y ago by .                                                .‭  ·  edited 2y ago by .                                                .‭

40%
+0 −1
Why I can't use dark theme in Manjaro?

I was using Chrome for a moment in Manjaro. My theme was Adwaita dark which I chose from Tweaks. Suddenly, I noticed my theme was changed for no reason. I had updated my system 4-5 hours ago. When ...

1 answer  ·  posted 3y ago by deleted user  ·  last activity 3y ago by deleted user

40%
+2 −4
How to give password in shell script?

That's my Bash script: #!bin/sh cd qpixel sudo systemctl enable mysql mysql -u root -p rails s When it executes the line mysql -u root -p it will ask for password. To do so, I have tried...

1 answer  ·  posted 3y ago by deleted user  ·  edited 1y ago by fedorqui‭

40%
+2 −4
Why does Linux use the sudo command?

Why does Linux use the sudo command?

1 answer  ·  posted 3mo ago by catexotica‭  ·  last activity 2mo ago by matthewsnyder‭

37%
+1 −3
Running several commands without && or ; or ()

I copy-paste several commands at once from a markdown editor (Typora) to Bash in a Putty window terminal; the file I work with reads as follows (empty lines included): $ non sed command 1 $ non s...

1 answer  ·  posted 2y ago by deleted user  ·  last activity 2y ago by Grove‭

33%
+1 −4
Substituting text in a sed like manner but with a richer format

I have the following problems working with sed: It doesn't allow multiline operations (thus, no indentations, no nesting) It is generally obligatory to wrap entire commands in quote marks (sed ...

1 answer  ·  posted 2y ago by deleted user  ·  last activity 2y ago by user53100‭

33%
+0 −2
Is PipeWire easier to use than PulseAudio? [closed]

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 someth...

0 answers  ·  posted 10mo ago by matthewsnyder‭  ·  closed 10mo ago by Quasímodo‭

28%
+0 −3
Why I can't update my system? (Kali Linux)

I had installed Kali Linux recently. I can't update or upgrade my system. Even, I can't install anything. Here's the error log apt update Get:1 http://kali.cs.nctu.edu.tw/kali kali-rolling InRele...

1 answer  ·  posted 2y ago by Anonymous‭  ·  last activity 2y ago by Anonymous‭

28%
+0 −3
Why can't I install google-chrome?

apt install google-chrome-stable_current_amd64.deb E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/...

1 answer  ·  posted 2y ago by Anonymous‭  ·  last activity 2y ago by Anonymous‭

25%
+0 −4
Is there possible way to change bit if my system is using 64 bit kernel?

Is it possible to change bit of a system? My system is using 64 bit kernel. I was trying to install chrome in my system. But, I couldn't since chrome doesn't support 32 bit. Since my system is usin...

1 answer  ·  posted 2y ago by Anonymous‭  ·  edited 2y ago by Anonymous‭

bit
22%
+0 −5
Is it possible to write more than 1 equation in LO Math? [closed]

I was using Libre Office Math. I thought I can write multiple equations in LO Math. But, I noticed I can't write more than one equation. I was trying to write multi-line. Unfortunately, I couldn't....

1 answer  ·  posted 3y ago by deleted user  ·  last activity 3y ago by deleted user

22%
+0 −5
Do shells have anything to do with port forwarding or port triggering?

I find port forwarding and port triggering as advanced sub-topics of the topic of network protocols which include the "port" concept such as TCP and UDP. I am wondering if shells in general and Ba...

1 answer  ·  posted 3y ago by deleted user  ·  last activity 3y ago by LawrenceC‭

22%
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Privacy focused Linux distro [closed]

Suggest me the most security and privacy focused Linux distro within three of them given below. Fedora Qubes OS Whonix. Please help me to choose. Thank you.

0 answers  ·  posted 1y ago by abarajithanjudith‭  ·  closed 1y ago by ArtOfCode‭