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What are some of your most useful or favorite terminal commands? (piefed.social)
submitted 10 months ago by to c/linux@lemmy.ml
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I've been setting up a new Proxmox server and messing around with VMs, and wanted to know what kind of useful commands I'm missing out on. Bonus points for a little explainer.

Journalctl | grep -C 10 'foo' was useful for me when I needed to troubleshoot some fstab mount fuckery on boot. It pipes Journalctl (boot logs) into grep to find 'foo', and prints 10 lines before and after each instance of 'foo'.

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[–] 1 point 10 months ago* (2 children)

Is there a version of $_ that works with mv? It just keeps renaming my files to "filedir," I'm trying sort through a directory and move some files to another for keeping, be easier if I could do:

mv picture1.jpg /path/to/keepdirectory

then do something like

mv picture2.jpg $_

And so on. But with that I'd just be renaming all my photos "filedir" instead of moving them lol.

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  • [–] 2 points 7 months ago (1 child)

    I just tried your use case, and it did move the files to the correct folder.

    using zsh:

     user@computer  ~  touch test.jpg
 user@computer  ~  touch test2.jpg
 user@computer  ~  mv test.jpg ./Public 
 user@computer  ~  mv test2.jpg $_
 user@computer  ~  ls ./Public 
test2.jpg  test.jpg
 user@computer  ~ 

    using bash:

    [user@computer Public]$ mkdir test
[user@computer Public]$ ls
test  test2.jpg  test.jpg
[user@computer Public]$ mv test.jpg ./test
[user@computer Public]$ mv test2.jpg $_
[user@computer Public]$ ls
test
[user@computer Public]$ ls test/
test2.jpg  test.jpg
[user@computer Public]$

    using bash and full path:

    [user@computer Public]$ ls
test  test2.jpg  test.jpg
[user@computer Public]$ mv test.jpg /home/user/Public/test
[user@computer Public]$ mv test2.jpg $_
[user@computer Public]$ ls
test
[user@computer Public]$ ls test/
test2.jpg  test.jpg
[user@computer Public]$

    What shell are you using? You can check it by using echo $0.

     user@computer  ~  echo $0
/usr/bin/zsh

    [user@computer ~]$ echo $0
/bin/bash

    I can't reproduce it, even when putting the directory path in quotes, it still simply moved the file.

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