Provided by: passwd_220.127.116.11+svn3283-3ubuntu5_i386
usermod - zmiana danych konta uytkownika
usermod [opcje] LOGIN
Polecenie usermod zmienia systemowe pliki kont, odzwierciedlajc zmiany
podane w wierszu polece.
Polecenie usermod posiada nastpujce opcje:
Add the user to the supplementary group(s). Use only with the -G
Nowa warto pola komentarza dla danego uytkownika w pliku hasel.
Zwykle jest zmieniana przy pomocy polecenia chfn(1).
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.
Data, od ktorej konto danego uytkownika zostanie wylczone. Data
podawana jest w formacie MM/DD/RR.
The number of days after a password expires until the account is
A value of 0 disables the account as soon as the password has
expired, and a value of -1 disables the feature.
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.
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.
The name of the user will be changed from LOGIN to NEW_LOGIN.
Nothing else is changed. In particular, the user's home directory
name should probably be changed manually to reflect the new login
Zablokuj haslo uytkownika. Opcja ta powoduje wstawienie '!' na
pocztku zakodowanego hasla. Opcji tej nie mona uywa z opcjami -p or
Note: if you wish to lock the account (not only access with a
password), you should also set the EXPIRE_DATE to 1.
Move the content of the user's home directory to the new location.
This option is only valid in combination with the -d (or --home)
usermod will try to adapt the ownership of the files and to copy
the modes, ACL and extended attributes, but manual changes might be
When used with the -u option, this option allows to change the user
ID to a non-unique value.
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.
The password will be written in the local /etc/passwd or
/etc/shadow file. This might differ from the password database
configured in your PAM configuration.
You should make sure the password respects the system's password
Nazwa nowej powloki (shell) uytkownika. Ustawienie tego pola na
puste powoduje, e system wybierze domyln powlok logowania.
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. Values between 0 and 999 are typically
reserved for system accounts.
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
The ownership of files outside of the user's home directory must be
Odblokowuje haslo uytkownika. Opcja ta powoduje usuniecie '!' z
pocztku zakodowanego hasla. Opcji tej nie mona uywa z opcjami -p
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 SELinux user for the user's login. The default is to leave this
field the blank, which causes the system to select the default
You must make certain that the named user is not executing any
processes when this command is being executed if the user's numerical
user ID, the user's name, or the user's home directory is being
changed. usermod checks this on Linux, but only check if the user is
logged in according to utmp on other architectures.
You must change the owner of any crontab files or at jobs manually.
You must make any changes involving NIS on the NIS server.
The following configuration variables in /etc/login.defs change the
behavior of this tool:
The mail spool directory. This is needed to manipulate the mailbox
when its corresponding user account is modified or deleted. If not
specified, a compile-time default is used.
Defines the location of the users mail spool files relatively to
their home directory.
The MAIL_DIR and MAIL_FILE variables are used by useradd, usermod, and
userdel to create, move, or delete the user's mail spool.
Maximum members per group entry. When the maximum is reached, a new
group entry (line) is started in /etc/group (with the same name,
same password, and same GID).
The default value is 0, meaning that there are no limits in the
number of members in a group.
This feature (split group) permits to limit the length of lines in
the group file. This is useful to make sure that lines for NIS
groups are not larger than 1024 characters.
If you need to enforce such limit, you can use 25.
Note: split groups may not be supported by all tools (even in the
Shadow toolsuite). You should not use this variable unless you
really need it.
Informacje o grupach uytkownikow.
Informacje chronione o grupach uytkownikow.
Informacja o kontach uytkownikow.
Informacje chronione o uytkownikach.
chfn(1), chsh(1), passwd(1), crypt(3), gpasswd(8), groupadd(8),
groupdel(8), groupmod(8), login.defs(5), useradd(8), userdel(8).