su(1) on Linux
The text 8ad6b21fa27d, as Debian 10 (Buster) shipped it.
run a command with substitute user and group ID
Flags it lists
-
- -
--command -
--fast -
--group -
--help -
--login -
--preserve-environment -
--pty -
--session-command -
--shell -
--supp-group -
--version -
--whitelist-environment -
-G -
-P -
-V -
-c -
-f -
-g -
-h -
-l -
-m -
-p -
-s -
-w