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’.
And 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.