# phpman > man > rush(1) [RUSH(1)](https://www.chedong.com/phpMan.php/man/RUSH/1/markdown) Rush User Reference [RUSH(1)](https://www.chedong.com/phpMan.php/man/RUSH/1/markdown) ## NAME rush - restricted user shell ## SYNOPSIS **rush** [**-ht**] [**-C** _CHECK_] [**-D** _ATTR_[**,**_ATTR_...]] [**-c** _COMMAND_] [**-d** _NUMBER_] [**-i**] [**-u** _USER_] [**--debug** _NUMBER_] [**--dump=**_ATTR_[**,**_ATTR_...]] [**--help**] [**--show-default**] [**--usage**] [**--version**] [_FILE_] ## NOTE This manpage is a short description of GNU **rush**. For a detailed discussion, including exam‐ ples and usage recommendations, refer to the manual **GNU** **Rush** **--** **a** **restricted** **user** **shell**, available in texinfo format. If the **info** reader and the rush documentation are properly in‐ stalled on your system, the command **info** **rush** should give you access to the complete manual. You can also view the manual using the info mode in [**emacs**(1)](https://www.chedong.com/phpMan.php/man/emacs/1/markdown), or find it in various formats online at **** If any discrepancies occur between this manpage and the **Manual**, the later shall be considered the authoritative source. ## DESCRIPTION GNU **rush** is a restricted user shell, designed for sites that provide limited remote access to their resources, such as svn or git repositories, scp, or the like. Upon startup **rush** analyzes its command line and examines the set of configuration rules to determine what kind of access the user is to be granted. ## OPTIONS ### -d --debug= Set debugging level. The greater is the _NUMBER_, the more verbose is the logging. The debugging information is reported via [**syslog**(3)](https://www.chedong.com/phpMan.php/man/syslog/3/markdown) using **authpriv,** priority **debug**. Maxi‐ mum meaningful value for _NUMBER_ is **3**. ### -D --dump= Request dump mode. Arguments are the names of the attributes to be dumped, or the word **all** standing for all attributes. Refer to the GNU Rush manual for a detailed de‐ scription. ### -t --test --lint Run in test mode. When this option is given, the following occurs: 1. All diagnostic messages are redirected to standard error, instead of syslog. 2. If a single non-option argument is present, it is taken as a name of the con‐ figuration file to use. 3. The configuration file is parsed. If parsing fails, the program exits with the code 1. 4. If the **-c** option is present, **rush** processes its argument as usual, except that the command itself is not executed. ### -u --user= Supplies user name for use with **--test**. ### -c Execute _COMMAND_. ### -C --security-check= Add or remove configuration security check. The argument is one of the following: **all** Enable all checks. **owner** Check if the file is owned by root. **iwgrp**, **groupwritablefile** Check if the file is not group writable. **iwoth**, **worldwritablefile** Check if the file is not world writable. **dir**___**iwgrp**, **groupwritabledir** Check if the directory where the file resides is not group writable. **dir**___**iwoth**, **worldwritabledir** Check if the directory where the file resides is not world writable. **link** Check if the file is not a symbolic link to a file residing in a group or world writable directory. ### -i uration allow interactive access. ### --show-default Show default configuration. ## SEE ALSO [**rush.rc**(5)](https://www.chedong.com/phpMan.php/man/rush.rc/5/markdown), [**rushlast**(1)](https://www.chedong.com/phpMan.php/man/rushlast/1/markdown), [**rushwho**(1)](https://www.chedong.com/phpMan.php/man/rushwho/1/markdown). ## AUTHORS Sergey Poznyakoff ## BUG REPORTS Report bugs to <>. ## COPYRIGHT Copyright © 2016 Sergey Poznyakoff License GPLv3+: GNU GPL version 3 or later <> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. RUSH August 20, 2016 [RUSH(1)](https://www.chedong.com/phpMan.php/man/RUSH/1/markdown)