Walhall:~ # grep test /etc/group
Walhall:~ # grep test /etc/passwd
test:x:501:100:Wie es der Name schon sagt.:/home/test:/bin/bash
Walhall:~ # grep test /etc/shadow
test:Y/.a49d9gePxA:9864:0:10000::::
Walhall:~ # passwd -S test
test P 01/03/97 0 10000
Walhall:~ # 
Walhall:~ # passwd -n 1 test
Changing password for test
Walhall:~ # grep test /etc/shadow
test:Y/.a49d9gePxA:9864:1:10000::::
Walhall:~ # passwd -S test
test P 01/03/97 1 10000
Walhall:~ # 
Walhall:~ # passwd -x 60 test
Changing password for test
Walhall:~ # grep test /etc/shadow
test:Y/.a49d9gePxA:9864:1:60::::
Walhall:~ # passwd -S test
test P 01/03/97 1 60
Walhall:~ # 
Walhall:~ # passwd -i 10 test
Changing password for test
Walhall:~ # grep test /etc/shadow
test:Y/.a49d9gePxA:9864:1:60::10::
Walhall:~ # passwd -S test
test P 01/03/97 1 60  10
Walhall:~ # 
Walhall:~ # passwd -w 7 test
Changing password for test
Walhall:~ # grep test /etc/shadow
test:Y/.a49d9gePxA:9864:1:60:7:10::
Walhall:~ # passwd -S test
test P 01/03/97 1 60 7 10
Walhall:~ # 
Walhall:~ # passwd -l test
Changing password for test
Walhall:~ # grep test /etc/shadow
test:!Y/.a49d9gePxA:9864:1:60:7:10::
Walhall:~ # passwd -S test
test L 01/03/97 1 60 7 10
Walhall:~ # 
Walhall:~ # passwd -u test
Changing password for test
Walhall:~ # grep test /etc/shadow
test:Y/.a49d9gePxA:9864:1:60:7:10::
Walhall:~ # passwd -S test
test P 01/03/97 1 60 7 10
Walhall:~ # 
Walhall:~ # usermod -e /
Walhall:~ # grep test /etc/shadow
test:Y/.a49d9gePxA:9866:1:60:7:10:9893:
Walhall:~ # passwd -S test
test P 01/05/97 1 60 7 10
Walhall:~ # 
Walhall:~ # usermod -G game test
Walhall:~ # grep test /etc/group
game:x:1:test
Walhall:~ # passwd test
Changing password for test
Enter the new password (minimum of 5 characters)
Please use a combination of upper and lower case letters and numbers.
New Password:
Re-enter new password:
Walhall:~ # grep test /etc/shadow
test:3./FbAvKjeruE:9866:1:60:7:10:9893:
Walhall:~ # passwd -S test
test P 01/05/97 1 60 7 10