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’.

    • netvor@lemmy.world
      link
      fedilink
      arrow-up
      2
      ·
      1 day ago

      wow, i’ve been using bash command line extensively for over 10 years and i’ve missed this gem completely. :-D

      and there’s more in help fc:

      fc [-e ename] [-lnr] [first] [last]
      fc -s [pat=rep] [cmd]
      [...]