The shadow-utils package includes the necessary programs for converting UNIX password files to the shadow password format, plus programs for managing user and group accounts .
The pwconv command converts passwords to the shadow password format. The pwunconv command unconverts shadow passwords and generates a passwd file (a standard UNIX password file). The pwck and grpck commands checks the integrity of users and groups password and shadow files.
The lastlog command prints out the last login times for all users.
The useradd, userdel, and usermod commands are used for managing user accounts. The groupadd, groupdel, and groupmod commands are used for managing group accounts.
The package also contains login, su, sg, newgrp, chage, chfn, chsh, gpasswd, chpasswd, chgpasswd, newusers and faillog
These details are provided for information only. No information here is legal advice and should not be used as such.