Name
su
Synopsis
su [option
] [user
] [shell_args
]
Creates a shell with the effective user-ID user.
If no user is specified, creates a shell for a
privileged user (that is, becomes a superuser). Enter
EOF to terminate. You can run the shell with
particular options by passing them as shell_args
(e.g., if the shell runs sh
, you can specify
-c
command to execute
command via sh
or
-r
to create a restricted shell).
Options
-
-l
Go through the entire login sequence (i.e., change to user’s environment).
-
-c
command
Execute command in the new shell and then exit immediately. If command is more than one word, it should be enclosed in quotes—for example:
su -c 'find / -name \*.c -print' nobody
-
-f
Start shell with
-f
option. In csh and tcsh, this suppresses the reading of the.cshrc
file. In bash, this suppresses filename pattern expansion.-
-m
Do not reset environment variables.
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