Provided by: passwd_4.1.1-6ubuntu6_i386 bug

NAMN

       usermod - ändra ett användarkonto

SYNOPSIS

       usermod [flaggor] INLOGGNINGSNAMN

BESKRIVNING

       Kommandot usermod ändrar systemkontofiler enligt det som anges på
       kommandoraden.

FLAGGOR

       Flaggorna som gäller för kommandot usermod är:

       -a, --append
           Lägg till användaren till tilläggsgrupp(er). Använd endast med
           flaggan -G.

       -c, --commentKOMMENTAR
           Det nya värdet för användarens kommentarsfält i lösenordsfilen.
           Vanligtvis ändras det med verktyget chfn(1).

       -d, --homeHEM_KAT
           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.

       -e, --expiredateUTGNGSDATUM
           The date on which the user account will be disabled. The date is
           specified in the format YYYY-MM-DD.

       -f, --inactiveINAKTIV
           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.
           The default value is -1.

       -g, --gidGRUPP
           The group name or number of the user´s new initial login group. The
           group name must exist. A group number must refer to an already
           existing group. The default group number is 1.

       -G, --groupsGRUPP1[,GRUPP2,...[,GRUPPN]]]
           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, --loginNYTT_INLOGGNINGSNAMN
           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
           name.

       -L, --lock
           Lås en användares lösenord. Detta sätter ett "!" i början av det
           krypterade lösenordet som effektivt inaktiverar lösenordet. Du kan
           inte använda denna flagga med -p eller -U.

           Note: if you wish to lock the account (not only access with a
           password), you should also set the EXPIRE_DATE to 1.

       -o, --non-unique
           When used with the -u option, this option allows to change the user
           ID to a non-unique value.

       -p, --passwordLSENORD
           Det krypterade lösenordet, som returneras av crypt(3).

       -s, --shellSKAL
           The name of the user´s new login shell. Setting this field to blank
           causes the system to select the default login shell.

       -u, --uidUID
           The 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. Any files which the user owns and which are located in
           the directory tree rooted at the user´s home directory will have
           the file user ID changed automatically. Files outside of the user´s
           home directory must be altered manually.

       -U, --unlock
           Låser upp en användares lösenord. Detta tar bort det inledande "!"
           i det krypterade lösenordet. Du kan inte använda denna flagga med
           -p eller -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).

TÄNK

       usermod will not allow you to change the name of a user who is logged
       in. 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 is being changed. You must change the owner of any crontab
       files manually. You must change the owner of any at jobs manually. You
       must make any changes involving NIS on the NIS server.

CONFIGURATION

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

       MAIL_DIR (string)
           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.

       MAIL_FILE (string)
           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.

       MAX_MEMBERS_PER_GROUP (number)
           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.

FILER

       /etc/group
           Gruppkontoinformation.

       /etc/passwd
           Användarkontoinformation.

       /etc/shadow
           Säker användarkontoinformation.

SE OCKSÅ

       chfn(1), chsh(1), passwd(1), crypt(3), gpasswd(8), groupadd(8),
       groupdel(8), groupmod(8), login.defs(5), useradd(8), userdel(8).