Linux and AIX user non expiry and force password change at first login

In Linux, if you want to set the password for an account to never expire, here is the command:

# chage -I -1 -m 0 -M 99999 -E -1 username 

And to force a user to change his password upon first login:

# chage -d0 username

Current status of the account can be checked via chage command :

# chage -l username 

Last password change                                    : Jun 18, 2013

Password expires                                        : never

Password inactive                                       : never

Account expires                                         : never

Minimum number of days between password change          : 0

Maximum number of days between password change          : 99999

Number of days of warning before password expires       : 7

For AIX, to set the password to non expiry and force the user to change his password upon first login:

# chuser expires=0 maxage=0 username 


To check the username status in AIX:

# lsuser -f username