       1mid options0m

              This command provides a means of getting, setting and converting
              user, group and process ids.  The 1mid 22mcommand has  the  following
              options:

              1mid user 22m?4mname24m?

              1mid userid 22m?4muid24m?
                     Set the real and effective user ID to 4mname24m or 4muid24m, if the
                     name (or uid) is valid and permissions allow it.  If  the
                     name (or uid) is not specified, the current name (or uid)
                     is returned.

              1mid convert userid 4m22muid0m

              1mid convert user 4m22mname0m
                     Convert a user ID number to a user name, or vice versa.

              1mid group 22m?4mname24m?

              1mid groupid 22m?4mgid24m?
                     Set the real and effective group ID to 4mname24m  or  4mgid24m,  if
                     the  name (or gid) is valid and permissions allow it.  If
                     the group name (or gid) is  not  specified,  the  current
                     group name (or gid) is returned.

              1mid groups0m

              1mid groupids0m
                     Return the current group access list of the process.  The
                     option 1mgroups 22mreturns group names and 1mgroupids 22mreturns id
                     numbers.

              1mid convert groupid 4m22mgid0m

              1mid convert group 4m22mname0m
                     Convert a group ID number to a group name, or vice versa.

              1mid effective user0m

              1mid effective userid0m
                     Return the effective user name, or effective user ID num-
                     ber, respectively.

              1mid effective group0m

              1mid effective groupid0m
                     Return the effective group name, or  effective  group  ID
                     number, respectively.

              1mid effective groupids0m
                     Return all of the groupids the user is a member of.

              1mid host0m
                     Return  the hostname of the system the program is running
                     on.

              1mid process0m
                     Return the process ID of the current process.

              1mid process parent0m
                     Return the process  ID  of  the  parent  of  the  current
                     process.

              1mid process group0m
                     Return the process group ID of the current process.

              1mid process group set0m
                     Set  the  process  group ID of the current process to its
                     process ID.

              1mid host0m
                     Returns the standard host name of the machine the process
                     is executing on.

                     On  1mWindows22m, only the 1mhost 22mand 1mprocess 22moptions are imple-
                     mented.
