User databases
From wikinotes
TODO:
I have code for handling these in TMA repo.
Tools
Linux
sudo useradd --create-home will # create user will, and home sudo useradd --system build # no home dir, uid in system range sudo groupadd will sudo groupadd --system build sudo usermod -aG build will # add will to group buildFreeBSD
Locations
/etc/passwd
/etc/groups
/etc/shadow
/etc/gshadow