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Q&A

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

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66%
+2 −0
Quickly increase virtual console ("TTY") font size on the fly

I just want to "zoom in/out" in the text console, is there a straightforward command to do that? I have found various sources (1, 2, 3) that either suggest permanent changes (e.g. modifying config...

1 answer  ·  posted 3y ago by Quasímodo‭  ·  last activity 3y ago by Quasímodo‭

57%
+2 −1
Unpacking .zst files on Ubuntu

How one may unpack .zst archived on Ubuntu? I received .zst archive file and I am looking for a way to unpack it.

1 answer  ·  posted 3y ago by Runaway_from_you_know_what‭  ·  last activity 3y ago by Runaway_from_you_know_what‭

60%
+1 −0
How can you create a separate home partition using LVM?

I'm currently using Fedora 34 and want to install Fedora 35 while keeping around just my home folder. Currently I don't have a separate home partition, but I read online that it's easy to make one ...

1 answer  ·  posted 3y ago by true_blue‭  ·  edited 3y ago by true_blue‭

75%
+4 −0
Make Less use a normal view instead of hexdump view

Less does not display data files normally, but if it were some sort of Xxd. $ bash --norc $ export LESS= $ file -i /var/log/lastlog /var/log/lastlog: application/octet-stream; charset=binary $...

1 answer  ·  posted 3y ago by Quasímodo‭  ·  edited 3y ago by Quasímodo‭

86%
+11 −0
In a bash shell script, how to filter the command line argument list to unique entries only, for processing each?

I have a handful of shell scripts that accept any number of command line arguments, then do some relatively expensive processing based on each command line argument in turn. The general format for ...

3 answers  ·  posted 3y ago by Canina‭  ·  last activity 3y ago by Quasímodo‭

66%
+2 −0
Docking station block playing of audio on laptop

How can I manually set default audio device? I connected docking station and Lubuntu is somehow convinced that it can play audio. I want to continue using laptop speakers. Detaching docking stati...

1 answer  ·  posted 3y ago by Runaway_from_you_know_what‭  ·  last activity 3y ago by Runaway_from_you_know_what‭

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 3y ago by deleted user  ·  last activity 3y ago by user53100‭

77%
+5 −0
How to figure out the licenses of files installed from packages?

On a Linux system, a lot of files are installed from packages, many of which have different licenses (and sometimes different licenses for different files in the package). If I want to figure out ...

1 answer  ·  posted 3y ago by celtschk‭  ·  last activity 3y ago by Quasímodo‭

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 3y ago by Anonymous‭  ·  edited 3y ago by Anonymous‭

bit
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 3y ago by Anonymous‭  ·  last activity 3y 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 3y ago by Anonymous‭  ·  last activity 3y ago by Anonymous‭

60%
+1 −0
With a V4L2-compatible webcam, how to see its video feed for the purpose of adjusting aiming?

I have ordered (but am still waiting for it to arrive) a USB-connected webcam that is supposed to be V4L2 compatible. Once it arrives, I'm obviously going to want to mount it such that it provides...

1 answer  ·  posted 3y ago by Canina‭  ·  last activity 3y ago by Quasímodo‭

60%
+1 −0
Trying to print with CUPS from Chromebook through Debian box to USB printer

Hi everyone, First post! I'm trying to be able to print from a client machine over my lan to an older HP Laserjet 1012 connected via USB to a Debian box. It prints fine directly. I've gone thro...

0 answers  ·  posted 3y ago by kserwick‭  ·  edited 3y ago by kserwick‭

71%
+3 −0
How to detect if a Linux Docker host has had unwelcome guests?

I plan to set up a Raspberry Pi to host some dockerized apps, for it to be accessible to the Internet through a remote proxy, and since I'm no sysadmin, I'm trying to come up with a suitable policy...

1 answer  ·  posted 3y ago by nnlei‭  ·  last activity 3y ago by Canina‭

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 3y ago by deleted user  ·  last activity 3y ago by Grove‭

60%
+1 −0
What are IUSE flags?

Every Gentoo user knows USE flags. Occasionally I stumble upon IUSE flags, for example, man emerge mention them in the description of an option: --newuse, -N ... USE flags may be toggled by yo...

1 answer  ·  posted 3y ago by Quasímodo‭  ·  edited 3y ago by Quasímodo‭

50%
+1 −1
Is it possible to install .deb file on arch-based Linux?

Is it possible to install .deb extension file in Arch-Based Linux? I saw there's no dpkg package. But, if installing .deb file possible than, how?

2 answers  ·  posted 3y ago by deleted user  ·  last activity 3y ago by Grove‭

66%
+2 −0
Access host device which bridges a connected device through same eth interface

I got 2 small computers running Linux. One acts as ethernet gadget, connected via USB to the other, the host. I set up a bridge, like so: ip link add name br0 type bridge ip link set dev br0 up...

1 answer  ·  posted 3y ago by sktpin‭  ·  last activity 3y ago by sktpin‭

50%
+0 −0
Ruby installation in Manjaro (Arch-Based Linux)

I was reading the documentation. In Debian based Linux, I have to install build-essential, libssl-dev. But, what about Arch-Based Linux? I had tried sudo pacman -Syy build-essential libssl-dev ...

2 answers  ·  posted 3y ago by deleted user  ·  last activity 3y ago by Anonymous‭

71%
+3 −0
How to use a detected USB RNDIS gadget as network adapter

I have a RaspberyPi module, with USB connected to another module computer (as USB host) running Linux. The RasPi is configured as USB ethernet gadget. Once I boot the RasPi, and enter dmesg on th...

1 answer  ·  posted 3y ago by sktpin‭  ·  last activity 3y ago by sktpin‭

71%
+3 −0
Get current server of pacman

How do I get the URL of the remote repository that pacman uses to download packages? I know that I can tell pacman which server to use by editing /etc/pacman.d/mirrorlist. But in my case, all of t...

1 answer  ·  posted 3y ago by Matthias Braun‭  ·  edited 3y ago by Matthias Braun‭

50%
+0 −0
USB host: any special kernel option(s) needed to detect Gadget devices?

I have a custom, ARM Cortex A53 based Linux system, based on Buildroot one RaspberryPi CM3 module, connected to the other system via USB The USB gadget is correctly set up on the CM3 module ...

0 answers  ·  posted 3y ago by sktpin‭

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

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

60%
+1 −0
Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock'

I have installed mysql-server on Ubuntu 20.04 then I tried to sign into mysql-server using sudo mysql -u root but I have got Error: Can't connect to local MySQL server through socket '/var/run/mys...

2 answers  ·  posted 3y ago by Kevin M. Mansour‭  ·  last activity 3y ago by Kevin M. Mansour‭

66%
+2 −0
Your Ruby version is 2.7.0, but your Gemfile specified 2.6.6.

In my Ruby project, when I try bundle install, I got: Your Ruby version is 2.7.0, but your Gemfile specified 2.6.6 I don't know how to solve it. I am using Windows Subsystem for Linux (WSL) U...

2 answers  ·  posted 3y ago by Kevin M. Mansour‭  ·  edited 3y ago by deleted user

50%
+0 −0
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

71%
+3 −0
Why does the file command fail to recognize non-text files as such?

POSIX defines Text file as A file that contains characters organized into zero or more lines. The lines do not contain NUL characters and none can exceed {LINE_MAX} bytes in length, inclu...

2 answers  ·  posted 3y ago by Quasímodo‭  ·  last activity 3y ago by LawrenceC‭

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

50%
+0 −0
unable to access Manjaro (kernel file not found)

I have Prime OS and Windows 10 alongside Linux Manjaro. I was using Prime OS nearly 2 hours. Then, I turned off my laptop for 30-60 minutes. Then, I turned my laptop on and I was using Windows 10 f...

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

50%
+0 −0
printer installation in Linux

I had write some texts in LibreOffice Writer. Now, I want to print them to pages. For that reason, we use "printer". My printer's name is HP laserJet P1007. In Windows, I can simply download from h...

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

50%
+0 −0
Grub rescue error

I was using Linux mint and Windows 10 together (in different partitions). Few months I was using it freely. Today I got a message in Windows 10 (new updates available or shutdown and update) then, ...

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

66%
+2 −0
grub loader can't detect Bliss OS | Shell

While this is about grub loader, this is likely to be a question of OS related. If it doesn't belong to this site than I will remove it. I had installed Bliss in sda2. Device Boot Start...

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

72%
+6 −1
How do I get lubuntu to not prompt non-admins about updates?

I have an old Mac Mini (Late 2009 model) kicking around, and as Apple stopped providing patches for it (and as I'm not going to put an unpatched system on the Internet), I was looking for a Linux d...

1 answer  ·  posted 3y ago by Peter Cooper Jr.‭  ·  last activity 3y ago by deleted user

71%
+3 −0
Is this a robust way to distinguish explicitly installed packages from those pulled in as dependencies?

When exploring the commands from this answer to my previous question, I found that the ist of packages includes a lot that were automatically installed due to dependencies. Obviously I'm interested...

1 answer  ·  posted 3y ago by celtschk‭  ·  last activity 3y ago by Peter Taylor‭

75%
+4 −0
What is the best way to identify changes from the default configuration in Raspbian systems?

I've got a Raspberry Pi running Raspbian, which I'd like to reinstall from scratch. However over time I've made many changes to the configuration (installed new packages, changed the name of the de...

1 answer  ·  posted 3y ago by celtschk‭  ·  last activity 3y ago by Canina‭

60%
+1 −0
How to use Avro in Linux?

I am using Manjaro(Arch-based Linux). And, I had installed Avro using the following command by getting help of the documentation yay -S ibus-avro-git Avro is software using that software user w...

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

75%
+4 −0
How to configure GNOME Keyring to by default NOT automatically unlock keyrings whenever logged in, on Debian?

On a Debian Buster system I use, the password for connecting to a VPN is stored in the GNOME Keyring. Therefore, whenever I want to connect to the VPN in question, I get prompted to unlock my keyri...

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