chage(1) - f14

1CHAGE(1)                         User Commands                        CHAGE(1)
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NAME

6       chage - change user password expiry information
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SYNOPSIS

9       chage [options] [LOGIN]
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DESCRIPTION

12       The chage command changes the number of days between password changes
13       and the date of the last password change. This information is used by
14       the system to determine when a user must change his/her password.
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OPTIONS

17       The options which apply to the chage command are:
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19       -d, --lastday LAST_DAY
20           Set the number of days since January 1st, 1970 when the password
21           was last changed. The date may also be expressed in the format
22           YYYY-MM-DD (or the format more commonly used in your area).
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24       -E, --expiredate EXPIRE_DATE
25           Set the date or number of days since January 1, 1970 on which the
26           user´s account will no longer be accessible. The date may also be
27           expressed in the format YYYY-MM-DD (or the format more commonly
28           used in your area). A user whose account is locked must contact the
29           system administrator before being able to use the system again.
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31           Passing the number -1 as the EXPIRE_DATE will remove an account
32           expiration date.
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34       -h, --help
35           Display help message and exit.
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37       -I, --inactive INACTIVE
38           Set the number of days of inactivity after a password has expired
39           before the account is locked. The INACTIVE option is the number of
40           days of inactivity. A user whose account is locked must contact the
41           system administrator before being able to use the system again.
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43           Passing the number -1 as the INACTIVE will remove an account´s
44           inactivity.
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46       -l, --list
47           Show account aging information.
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49       -m, --mindays MIN_DAYS
50           Set the minimum number of days between password changes to
51           MIN_DAYS. A value of zero for this field indicates that the user
52           may change his/her password at any time.
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54       -M, --maxdays MAX_DAYS
55           Set the maximum number of days during which a password is valid.
56           When MAX_DAYS plus LAST_DAY is less than the current day, the user
57           will be required to change his/her password before being able to
58           use his/her account. This occurrence can be planned for in advance
59           by use of the -W option, which provides the user with advance
60           warning.
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62           Passing the number -1 as MAX_DAYS will remove checking a password´s
63           validity.
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65       -W, --warndays WARN_DAYS
66           Set the number of days of warning before a password change is
67           required. The WARN_DAYS option is the number of days prior to the
68           password expiring that a user will be warned his/her password is
69           about to expire.
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71       If none of the options are selected, chage operates in an interactive
72       fashion, prompting the user with the current values for all of the
73       fields. Enter the new value to change the field, or leave the line
74       blank to use the current value. The current value is displayed between
75       a pair of [ ] marks.
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NOTE

78       The chage program requires a shadow password file to be available.
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80       The chage command is restricted to the root user, except for the -l
81       option, which may be used by an unprivileged user to determine when
82       his/her password or account is due to expire.
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FILES

85       /etc/passwd
86           User account information.
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88       /etc/shadow
89           Secure user account information.
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EXIT VALUES

92       The chage command exits with the following values:
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94       0
95           success
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97       1
98           permission denied
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100       2
101           invalid command syntax
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103       15
104           can´t find the shadow password file
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