NEWGRP(P)                                               NEWGRP(P)



NAME
       newgrp - Change group ID
       sg - Execute command as different group ID

SYNOPSIS
       newgrp [-] [group]
       sg [-] [group [[-c] command]]

DESCRIPTION
       newgrp  is  used  to  change the current group ID during a
       login session.  If the  optional  -  flag  is  given,  the
       user's  environment  will  be  reinitialized as though the
       user had logged in,  otherwise  the  current  environment,
       including current working directory, remains unchanged.

       newgrp  changes  the  current  real  group ID to the named
       group, or to the default group listed in /etc/passwd if no
       group  name  is  given.   The  user will be prompted for a
       password if they do not have  a  password  and  the  group
       does,  or  if  the  user is not listed as a member and the
       group has a password.  The user will be denied  access  if
       the  group password is empty and the user is not listed as
       a member.

       The sg command works  similiar  to  newgrp  but  does  not
       replace  the user's shell, so upon exit from a sg command,
       you are returned to  your  previous  group  ID.   sg  also
       accepts  a command.  The command will be executed with the
       Bourne shell and must be enclosed in quotes.

CAVEATS
       This version of newgrp has many compilation options,  only
       some of which may be in use at any particular site.

FILES
       /etc/passwd - user account information
       /etc/group - group information

SEE ALSO
       login(n), id(d), su(u)

AUTHOR
       Julianne Frances Haugh (jfh@austin.ibm.com)



                                                        NEWGRP(P)