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Questions tagged [command-line]

The command-line is the interactive interface to your shell.

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2 votes
1 answer
34 views

How to send a mail with text file as content and image as attachement

I want to send the content of file.txt as the body and file.png as attachment. I only have mail cli (mail (GNU Mailutils) 3.10). No other software package can be installed, so Mutt is out of the ...
1 vote
1 answer
67 views

How to isolate the audio tracks (vocals, separate instruments) from a music file?

With Deezer's spleeter seemingly not being in active development (in addition to requiring some past version of Python) and demucs not being actively maintained (4.0.1 runs into errors on my system, ...
2 votes
1 answer
304 views

Getting an "unexpected operator" error when logging in on a new account

I am relatively new to Linux, but my background is as a network monkey, so I'm used to the CLI. I just installed Debian onto a Libre Renegade and that went quite smoothly. So far I have had to alter ...
1 vote
1 answer
64 views

Why doesn’t zsh autocomplete .java source files when using java MyFile.java?

Since Java 10 as I recall, we can run Java source files directly from the command line: bash $ java Math.java The JVM compiles and executes the file automatically. However, in zsh, tab autocompletion ...
3 votes
2 answers
912 views

How can I ascertain which kernel (not version; kernel) is in use?

I want to be able to ascertain what kernel is in use across modern, UNIX-derivative OSes. This appears feasible, considering that utilities like uname exist on multiple OSes with different kernels. ...
2 votes
0 answers
117 views

How can I initialize a new a KDE wallet via the command line?

I am installed KDE Plasma (on Fedora 42) in an LXC container. My goal is setup KDE remote desktop and use it as a headless desktop environment. The issue is krdpserver stores the password for the ...
0 votes
2 answers
198 views

I have tried to install Howdy (practically Linux's Windows Hello). However, it seems like pypy3 failed to execute or something

I have tried to install Howdy, but it would always return with this message: >>> Upgrading pip to the latest version error: externally-managed-environmen×ばつ This environment is externally ...
0 votes
1 answer
25 views

How to list from the end in SystemD's CoreDumpCtl?

journalctl list provides an -e option to list from the end, rather than the default start. Can I do the same in coredumpctl list? I ask because I've a lot of coredumps.
4 votes
2 answers
465 views

recursive ls - Ignore files only in specific sub-directories

So, ls -R is a command I use a lot to quickly verify the file structure of my projects, or check for any leftover files, as it's simple enough to use and read, and is part of coreutils (which means I ...
-1 votes
1 answer
74 views

Is there an equivalent cli command in macos for hostnamectl?

Is there an equivalent on MacOS to the Linux hostnamectl command?
0 votes
1 answer
123 views

grep command not finding text in MS-Office or PDF documents

Debian GNU/Linux 11 (bullseye), grep (GNU grep) 3.6 I need find string in current directory within all files (doc, docx and pdf), grep command not working for me: grep -ril "word" . It ...
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0 votes
1 answer
46 views

Rename any number of archives within a directory under a condition [duplicate]

I'm using ubuntu linux and have huge folders of .pdf or .odt even sometimes .zip (or sometimes other formats however the first two are the most common). To access them through the command shell easily ...
5 votes
2 answers
2k views

What does the "@" mean at the end of file names produced by ls? [duplicate]

What does the @ symbol mean when appended to file names? (Note that I am NOT talking about the @ that's shown at the end of a permission string, indicating extended attributes, referenced in this, ...
1 vote
1 answer
66 views

Expected behaviour of GNU parallel --memfree <size> and --memsuspend <size> when size much bigger than RAM

While experimenting with GNU parallel I found that the following cases all hang with decreasing CPU usage on a Fedora 41 VM with 8GB RAM. Is this expected behaviour? parallel --halt now,fail=1 --...
1 vote
0 answers
70 views

Send an email with an attachment using mail command line

I'm trying to send an email with an attachment using the command mail but neither option -a nor -A works. With -a: echo "Please, find attached the report" | mail -s "Report" -r &...

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