1
Q
chsh
A
Changes the shell (command interpreter).
2
Q
groups
A
Prints the list of groups that include a specified user.
3
Q
id
A
Displays the user and group ID for a specified username.
4
Q
passwd
A
Changes the password.
5
Q
su
A
Starts a new shell as another user or root (when invoked without any argument).
