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최신판 | 당신의 편집 | ||
8번째 줄: | 8번째 줄: | ||
<pre class='shell'> | <pre class='shell'> | ||
-a, --append | -a, --append | ||
Add the user to the supplementary group(s). Use only with the -G option. | |||
-c, --comment COMMENT | |||
The new value of the user´s password file comment field. It is normally modified using the chfn(1) utility. | |||
-d, --home HOME_DIR | |||
The user´s new login directory. | |||
If the -m option is given, the contents of the current home directory will be moved to the new home directory, | |||
which is created if it does not already exist. If the current home directory does not exist the new home directory | |||
will not be created. | |||
-e, --expiredate EXPIRE_DATE | |||
The date on which the user account will be disabled. The date is specified in the format YYYY-MM-DD. | |||
An empty EXPIRE_DATE argument will disable the expiration of the account. | |||
This option requires a /etc/shadow file. A /etc/shadow entry will be created if there were none. | |||
-f, --inactive INACTIVE | |||
The number of days after a password expires until the account is permanently disabled. | |||
A value of 0 disables the account as soon as the password has expired, and a value of -1 disables the feature. | |||
This option requires a /etc/shadow file. A /etc/shadow entry will be created if there were none. | |||
-g, --gid GROUP | |||
The group name or number of the user´s new initial login group. The group must exist. | |||
Any file from the user´s home directory owned by the previous primary group of the user will be owned by this new | |||
group. | |||
The group ownership of files outside of the user´s home directory must be fixed manually. | |||
-G, --groups GROUP1[,GROUP2,...[,GROUPN]]] | |||
A list of supplementary groups which the user is also a member of. Each group is separated from the next by a | |||
comma, with no intervening whitespace. The groups are subject to the same restrictions as the group given with the | |||
-g option. | |||
If the user is currently a member of a group which is not listed, the user will be removed from the group. This | |||
behaviour can be changed via the -a option, which appends the user to the current supplementary group list. | |||
-l, --login NEW_LOGIN | |||
The name of the user will be changed from LOGIN to NEW_LOGIN. Nothing else is changed. In particular, the user´s | |||
home directory or mail spool should probably be renamed manually to reflect the new login name. | |||
-L, --lock | |||
Lock a user´s password. This puts a ´!´ in front of the encrypted password, effectively disabling the password. You | |||
can´t use this option with -p or -U. | |||
Note: if you wish to lock the account (not only access with a password), you should also set the EXPIRE_DATE to 1. | |||
-m, --move-home | |||
Move the content of the user´s home directory to the new location. If the current home directory does not exist the | |||
new home directory will not be created. | |||
This option is only valid in combination with the -d (or --home) option. | |||
usermod will try to adapt the ownership of the files and to copy the modes, ACL and extended attributes, but manual | |||
changes might be needed afterwards. | |||
-o, --non-unique | |||
When used with the -u option, this option allows to change the user ID to a non-unique value. | |||
-p, --password PASSWORD | |||
The encrypted password, as returned by crypt(3). | |||
Note: This option is not recommended because the password (or encrypted password) will be visible by users listing | |||
the processes. | |||
You should make sure the password respects the system´s password policy. | |||
-R, --root CHROOT_DIR | |||
Apply changes in the CHROOT_DIR directory and use the configuration files from the CHROOT_DIR directory. | |||
-s, --shell SHELL | |||
The name of the user´s new login shell. Setting this field to blank causes the system to select the default login | |||
shell. | |||
-u, --uid UID | |||
The new numerical value of the user´s ID. | |||
This value must be unique, unless the -o option is used. The value must be non-negative. | |||
The user´s mailbox, and any files which the user owns and which are located in the user´s home directory will have | |||
the file user ID changed automatically. | |||
The ownership of files outside of the user´s home directory must be fixed manually. | |||
No checks will be performed with regard to the UID_MIN, UID_MAX, SYS_UID_MIN, or SYS_UID_MAX from /etc/login.defs. | |||
-U, --unlock | |||
Unlock a user´s password. This removes the ´!´ in front of the encrypted password. You can´t use this option with | |||
-p or -L. | |||
Note: if you wish to unlock the account (not only access with a password), you should also set the EXPIRE_DATE (for | |||
example to 99999, or to the EXPIRE value from /etc/default/useradd). | |||
-Z, --selinux-user SEUSER | |||
The new SELinux user for the user´s login. | |||
A blank SEUSER will remove the SELinux user mapping for user LOGIN (if any). | |||
</pre> | </pre> | ||