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useradd



SYNOPSIS

       useradd [-D binddn] [-P path] [-c comment] [-d homedir]
               [-e expire] [-f inactive] [-G group,...] [-g gid]
               [-m [-k skeldir]] [-o] [-p password] [-u uid]
               [-r] [-s shell] [--service service] [--help]
               [--usage] [-v] account

       useradd --show-defaults

       useradd --save-defaults [-d homedir] [-e expire]
               [-f inactive] [-g gid] [-G group,...] [-s shell]


DESCRIPTION

       useradd  creates a new user account using the default val­
       ues from /etc/default/useradd and  the  specified  on  the
       command  line.   Depending on the command line options the
       new account will be added to  the  system  files  or  LDAP
       database,  the home directory will be created and the ini­
       tial default files and directories will be copied.


OPTIONS

       -c, --comment comment
              This option specifies the users finger information.

       -d, --home homedir
              This option specifies the users home directory.  If
              not specified, the default from  /etc/default/user­
              add is used.

       -e, --expire expire
              With  this option the date when the account will be
              expired can be changed. expiredate has to be speci­
              fied as number of days since January 1st, 1970. The
              date may also be expressed in the  format  YYYY-MM-
              DD.    If   not   specified,   the   default   from
              /etc/default/useradd is used.

       -f, --inactive inactive
              This option is used to set the number  of  days  of
              inactivity  after a password has expired before the
              account is locked. A user whose account  is  locked
              must contact the system  administrator before being
              able to use the account again.  A value of -1  dis­
              ables  this feature.  If not specified, the default
              from /etc/default/useradd is used.

       -G, --groups group,...
              With this option a list of supplementary groups can
              be specified, which the user should become a member
              of. Each group is separated from the next one  only
              by  a comma, without whitespace.  If not specified,
              the default from /etc/default/useradd is used.

       -m, --create-home
              Create home directory for new user account.

       -o, --non-unique
              Allow duplicate (non-unique) User IDs.

       -p, --password password
              Encrypted  password as returned by crypt(3) for the
              new account. The default is to disable the account.

       -u, --uid uid
              Force  the  new userid to be the given number. This
              value must be positive and unique. The  default  is
              to  use  the  first free ID after the greatest used
              one. The range from which the user  ID  is  choosen
              can be specified in /etc/login.defs.

       -r, --system
              Create  a  system  account.  A system account is an
              user with an UID between  SYSTEM_UID_MIN  and  SYS­
              TEM_UID_MAX as defined in /etc/login.defs.

       -s, --shell  shell
              Specify  user's login shell. The default for normal
              user accounts is taken from  /etc/default/useradd/,
              the default for system accounts is /bin/false.

       --service service
              Add the account to a special directory. The default
              is files, but ldap is also valid.

       -D, --binddn binddn
              Use the Distinguished Name binddn to  bind  to  the
              LDAP  directory.   The  user will be prompted for a
              password for simple authentication.

       -P, --path path
              The passwd and shadow files are located  below  the
              specified  directory  path.  chpasswd will use this
              files, not /etc/passwd and /etc/shadow.

       --help Print a list of valid options with a short descrip­
              tion.

       --usage
              Print a short list of valid options.

       -v, --version
              Print the version number and exit.


FILES

       /etc/passwd - user account information

pwdutils                    July 2003                  useradd(8)
  
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