Section: User Commands (1)
Updated: November 2008
Sommaire  

su - run a shell with substitute user and group IDs  

su [OPTION]... [-] [USER [ARG]...]  

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

--session-command=COMMAND

pass a single COMMAND to the shell with -c and do not create a new session

-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.  

Written by David MacKenzie.  

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

Copyright © 2008 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.  

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

info coreutils 'su invocation'

should give you access to the complete manual.

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