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with pacman --debug We can display the mirrors that pacman uses with the --debug option. For example, when running pacman --debug -Sy, pacman will write lines like these to standard error: debug...
There are keyboard shortcuts for navigation. Unfortunately they don't seem to be documented in help (at least I couldn't find an entry there), but you can see a list by typing ?. The red frame is ...
apt-mark aims to do this: the commands apt-mark showmanual and apt-mark showauto should show you respectively the packages which you explicitly installed and the ones which were added as dependenci...
A project I want to work on requires Ruby. I was directed to RVM or rbenv. I tried rbenv first because it has Mac instructions, ran into failures, uninstalled it and installed RVM, and still ran ...
Using BASH, how can I redirect stdout and stderr each, to two separate files, simultaneously? That's a mouthful, let me clarify a little: I have a hypothetical script that may/will generate outpu...
I'm still trying to solve my problem with installing Ruby on a new Mac, and some discussions are saying that I need to reinstall brew because of the change from the old chipset to the M1. (I'm jus...
Here's an alternative that is a one-liner drop-in for your existing script: eval set -- $(printf "%q\n" "$@" | sort -u) It works by escaping the initial arguments, piping the escaped arguments ...
The solution is to use an associative array to store what you've already seen: #!/bin/bash unset seen declare -A seen for arg in "$@" do if [[ -z "${seen[$arg]}" ]] then ...
If snap-store itself is preventing the update, it's straightforward: snap-store --quit sudo snap refresh snap-store But sometimes it might be something else, in which case the above solution w...
The Debian Administrator's Handbook: The Inner Workings of the Debian Project: Documentation for each package is stored in /usr/share/doc/package/. (...) The copyright file includes information ...
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 ...
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 xa...
I have a directory filled with Flac audio files and I would like to convert them all to Mp3. How do I go about this using FFmpeg? I am using the git FFmpeg and Slackware -current.
What you're looking for is called process substitution. In Bash and many bash-like shells, you can use <(foo_command --with --arguments) instead of the file path: diff <(ls /home/alice) <...
Populate an array of the file names and then print how many entries are in the array: $ files=( * ) $ echo "${#files[@]}" 124 That will work correctly even if your file names contain newlines...
This other answer uses process substitutions. Not every shell supports this feature. If your OS provides pathnames for file descriptors (/dev/fd/N or /proc/self/fd/N) then you can use them to achie...
Question How do I copy to clipboard from terminal with yy, assuming it's configured to use Vim bindings? I am using zsh with bindkey -v. MWE Enter something on the commandline (without pressi...
I want to remove all files with the ".part" extension in the current directory and its subdirectories, including files with the same name but different extension. Is this correct? find . -name '*...
If your goal is to make small edits to the resulting document, you can use LibreOffice with the following command: soffice --infilter="writer_pdf_import" --convert-to docx document.pdf This wil...
I would like to recommend splitting the "installation" tag into one for "OS-installation" and "software-installation". Although both are installation processes, the challenges associated with them ...
This sounds like a good idea. Installing an OS is a very different task to installing a piece of software on that OS and you can have experts in either of them with the two groups not necessarily o...
If you are about to start the tool Start the tool from a process that already blocks or ignores SIGUSR1 and/or SIGUSR2 and let the tool inherit these settings. A blocked signal, when generated, w...
It is often taught that in Unix/Linux text files should end with newline characters. The reason given (orally) to me by various sources was that "some commands (such as wc) assume or require a newl...
I built Python 3.11 from source (from GitHub python/cpython branch "3.11"). Here is what I did (after downloading the repo as ZIP) cd Downloads 7z x cpython-3.11.zip cd cpython-3.11 chmod +x c...
I'm using the Gnome System Monitor in Linux Mint. Whenever I attempt to "End" or "Kill" a process, I am given this warning via a modal dialog (emphasis mine): Killing a process may destroy data,...
