su



SU(1)                            User Commands                           SU(1)




NAME

       su - run a shell with substitute user and group IDs


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, --commmand=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 © 2004 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  There is
       NO warranty; not even for MERCHANTABILITY or FITNESS FOR  A  PARTICULAR
       PURPOSE.


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 coreutils su

       should give you access to the complete manual.



su (coreutils) 5.2.1               July 2005                             SU(1)

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