Is there a way to switch user identity within a script (executed as root as part of an installation process) to execute some commands without calling an external script, then return to root
to run other commands?
Sort of:
#!/bin/bash
some commands as root
SWITCH_USER_TO user
some commands as user including environment variables checks, without calling an external script
SWITCH_USER_BACK
some other stuff as root, maybe another user id change...