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su
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, clears all envvars except for
TERM, initializes HOME, SHELL, USER, LOGNAME and PATH
-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 HOME, SHELL, USER, LOGNAME 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 su bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report su translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2010 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.
SEE ALSO
The full documentation for su is maintained as a Texinfo manual. If