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RedHat 9 (Linux i386) - man page for chage (redhat section 1)

CHAGE(1)			     General Commands Manual				 CHAGE(1)

NAME
       chage - change user password expiry information

SYNOPSIS
       chage [-m mindays] [-M maxdays] [-d lastday] [-I inactive]
	     [-E expiredate] [-W warndays] user

       chage -l user

DESCRIPTION
       chage  changes  the number of days between password changes and the date of the last pass-
       word change.  This information is used by the system to determine when a user must  change
       her password.  The chage command is restricted to the root user, except for the -l option,
       which may be used by an unprivileged user to determine when her password or account is due
       to expire.

       With  the  -m  option, the value of mindays is the minimum number of days between password
       changes.  A value of zero for this field indicates that the user may change  her  password
       at any time.

       With  the  -M  option,  the  value of maxdays is the maximum number of days during which a
       password is valid.  When maxdays plus lastday is less than the current day, the user  will
       be  required  to change her password before being able to use her account.  This occurance
       can be planned for in advance by use of the  -W	option,  which	provides  the  user  with
       advance warning.

       With  the  -d  option,  the value of lastday is the number of days since January 1st, 1970
       when the password was last changed.  The date may also be expressed in the format YYYY-MM-
       DD (or the format more commonly used in your area).

       The -E option is used to set a date on which the user's account will no longer be accessi-
       ble.  The expiredate option is the number of days since	January  1,  1970  on  which  the
       accounted is locked.  The date may also be expressed in the format YYYY-MM-DD (or the for-
       mat more commonly used in your area).  A user whose account is  locked  must  contact  the
       system administrator before being able to use the system again.

       The -I option is used to set the number of days of inactivity after a password has expired
       before the account is locked.  The inactive option is the number of days of inactivity.	A
       value  of 0 disables this feature.  A user whose account is locked must contact the system
       administrator before being able to use the system again.

       The -W option is used to set the number of days of warning before  a  password  change  is
       required.  The warndays option is the number of days prior to the password expiring that a
       user will be warned her password is about to expire.

       If none of the options are selected, chage operates in an interactive  fashion,	prompting
       the user with the current values for all of the fields.	Enter the new value to change the
       field, or leave the line blank to use the current value.  The current value  is	displayed
       between a pair of [ ] marks.

NOTE
       The chage program requires shadow password file to be available.  Its functionality is not
       available when passwords are stored in the passwd file.

FILES
       /etc/passwd - user account information
       /etc/shadow - shadow user account information

SEE ALSO
       passwd(5), shadow(5)

AUTHOR
       Julianne Frances Haugh <jockgrrl@ix.netcom.com>

											 CHAGE(1)


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