SYNOPSIS

       su [OPTION]... [-] [USER [ARG]...]

DESCRIPTION

       Change the effective user id and group id to that of USER.

       -, -l, --login
              make the shell a login shell

       -c, --command=COMMAND
              pass a single COMMAND to the shell with -c

       -f, --fast
              pass -f to the shell (for csh or tcsh)

       -m, --preserve-environment
              do not reset environment variables

       -p     same as -m

       -s, --shell=SHELL
              run SHELL if /etc/shells allows it

       --help display this help and exit

       --version
              output version information and exit

       A mere - implies -l.   If USER not given, assume root.

AUTHOR

       Written by David MacKenzie.

REPORTING BUGS

       Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT

       Copyright (C) 2007 Free Software Foundation, Inc.
       This  is  free  software.   You may redistribute copies of it under the
       terms      of      the      GNU      General       Public       License
       <http://www.gnu.org/licenses/gpl.html>.   There  is NO WARRANTY, to the
       extent permitted by law.

SEE ALSO

       The full documentation for su is maintained as a  Texinfo  manual.   If
       the  info and su programs are properly installed at your site, the com-
       mand

              info su

       should give you access to the complete manual.