I am trying to run a command as another user in Linux. Here is what I run:
su user1 -c '/bin/mkdir /tmp/zz'
However, this gives me this error:
fatal: unrecognized command '/bin/mkdir /tmp/zz'
You need to swap the single quotes for double quotes. Not that these are only required with commands that take parameters, or if you chain several commands together.
As suggested by Mark Wagner, I encountered the same problem when the user had a non-standard shell (in my case it was git-shell). And the solution was to do: