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MAN page from OpenSuSE shadow-4.6-lp151.2.3.2.x86_64.rpm

CHAGE

Section: User Commands (1)
Updated: 04/29/2018
Index 

NAME

chage - change user password expiry information 

SYNOPSIS

chage [options] LOGIN
 

DESCRIPTION

Thechagecommand changes the number of days between password changes and the date of the last password change. This information is used by the system to determine when a user must change their password. 

OPTIONS

The options which apply to thechagecommand are:

-d, --lastday LAST_DAY

Set 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).

-E, --expiredate EXPIRE_DATE

Set the date or number of days since January 1, 1970 on which the user's account will no longer be accessible. The date may also be expressed in the format YYYY-MM-DD (or the format 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.

Passing the number-1as theEXPIRE_DATEwill remove an account expiration date.

-h, --help

Display help message and exit.

-I, --inactive INACTIVE

Set the number of days of inactivity after a password has expired before the account is locked. TheINACTIVEoption is the number of days of inactivity. A user whose account is locked must contact the system administrator before being able to use the system again.

Passing the number-1as theINACTIVEwill remove an account's inactivity.

-l, --list

Show account aging information.

-m, --mindays MIN_DAYS

Set the minimum number of days between password changes toMIN_DAYS. A value of zero for this field indicates that the user may change their password at any time.

-M, --maxdays MAX_DAYS

Set the maximum number of days during which a password is valid. WhenMAX_DAYSplusLAST_DAYis less than the current day, the user will be required to change their password before being able to use their account. This occurrence can be planned for in advance by use of the-Woption, which provides the user with advance warning.

Passing the number-1asMAX_DAYSwill remove checking a password's validity.

-R, --root CHROOT_DIR

Apply changes in theCHROOT_DIRdirectory and use the configuration files from theCHROOT_DIRdirectory.

-W, --warndays WARN_DAYS

Set the number of days of warning before a password change is required. TheWARN_DAYSoption is the number of days prior to the password expiring that a user will be warned their password is about to expire.

If none of the options are selected,chageoperates 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

Thechageprogram requires a shadow password file to be available.

Thechagecommand is restricted to the root user, except for the-loption, which may be used by an unprivileged user to determine when their password or account is due to expire. 

CONFIGURATION

The following configuration variables in/etc/login.defschange the behavior of this tool: 

FILES

/etc/passwd

User account information.

/etc/shadow

Secure user account information.
 

EXIT VALUES

Thechagecommand exits with the following values:

0

success

1

permission denied

2

invalid command syntax

15

can't find the shadow password file
 

SEE ALSO

passwd(5),shadow(5).


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
NOTE
CONFIGURATION
FILES
EXIT VALUES
SEE ALSO

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