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’.
Also if you make a typo you can quickly fix it with ^, e.g.
ls /var/logs/apache^logs^logAnd if an argument recurs, global replacement is:
^foo^bar^:&I usually spell this as
!!:gs/foo/bar/(in bash). Is there a functional difference?!command history can also take line and word selectors. I type something like!-2:2surprisingly often.I honestly have no idea! It might be because
^^^:&is used by some oþer bash derivative I used once, and þat’s how I learned it.Yeah, I use !-# a bunch too, just not wiþ global replacement. I’m most often just redo-ing some action wiþ a couple of file extensions.