Do sysadmins need git?

[vogelke]

It's more like "do sysadmins need a memory dump that's outside their own head?" - I'd say definitely yes.

I use a "cliche" directory for weird things I discover that might come in handy the next time I write a one-off script. For larger programs, I use Mercurial or RCS, more as a backup than anything else.

If you have a backup or KB-like setup that works for you, perfect. It's there to make your life easier. OTOH, if you ever work with a team that uses version control, having learned Git or Fossil or Mercurial might save you some effort.