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Full Discussion: Executing Commands From Non-Standard Path (Changing user's PATH secretely???)
Top Forums Shell Programming and Scripting Executing Commands From Non-Standard Path (Changing user's PATH secretely???) Post 302348994 by ramesh_samane on Sunday 30th of August 2009 06:44:13 PM
Old 08-30-2009
Quote:
Originally Posted by reborg
Use a restricted shell such as rbash or rksh and set the path and don't allow users to execute commands not in their PATH
OK makes sense. This is for BASH shell so will check how I can set rbash. So is it possible that to do from /etc/profile? I need all the normal users except administrators to get rbash when they log in.

Also can I configure the rbash such that it will allow user to execute only commands in their path. And if I force users to rbash will they be able to execute commands like 'cd' etc. Will they be able to change their path?

Basically would like to know if it is possible to custom configure rbash or we have to accept it's default behavior.

Many thanks for the reply and I hope I will be able to solve this issue today by getting help from this thread.

Regards,
Ramesh

---------- Post updated at 04:14 AM ---------- Previous update was at 03:28 AM ----------

rbash will totally restrict the users. Like their ability to "cd" etc among other things. I was wondering if I can set default shell of users as rbash and then customize it further, for example allow them to use commands like "cd" etc.

Just checking that possibility. Any comments from your side "reborg"?

Thanks...
 

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LEARN ABOUT DEBIAN

surfraw-update-path

SURFRAW-UPDATE-PATH(1)					User Contributed Perl Documentation				    SURFRAW-UPDATE-PATH(1)

NAME

       surfraw-update-path - updates PATH in shell config files

SYNOPSIS

       surfraw-update-path [-add] [-remove] [-check] [-sys] [-all] [-help] [-shell=SHELL]

DESCRIPTION

       surfraw-update-path adds the surfraw elvi directory (/usr/lib/surfraw) to your PATH in your shell's config file.

       Currently it supports bash, sh, csh, tcsh, ash, dash, ksh, pdksh, zsh, rc, and es

       Don't forget to login again or source your login files for it to take effect.

OPTIONS

       -check
	   Checks to see if the surfraw config code is present.  This is the default.

       -add
	   Adds the surfraw config code.

       -remove
	   Removes the surfraw config code

       -sys
	   Updates the system-wide shell config instead of the user.  Must be done as root.

       -shell=SHELL
	   Selects the shell to configure. Defaults to the value of the $SHELL environment variable.

	   Currently supported shells are:

	   sh, ash, bash, dash, csh, tcsh, ksh, pdksh, zsh, rc, and es.

       -all
	   Attempts to configure the startup files for all known shells

       -help
	   Gives a usage message

RETURN VALUE

       -check returns 0 if the surfraw code is present in the file, 1 if it is not found, or 2 on error.

       All other options return 0 on success, or 2 on error.

ENVIRONMENT

       SHELL
	   Used to determine which shell to configure, if -shell is not given.

       HOME
	   Used to find users config files.

       ENV Used by posix-compliant shells to specify a startup rc file.

       ZDOTDIR
	   Used to find user config files for zsh. If not set, defaults to HOME.

SEE ALSO

       surfraw(1), sh(1), ash(1), bash(1), dash(1), csh(1), tcsh(1), ksh(1), pdksh(1), zsh(1), rc(1), es(1)

AUTHOR

       Ian Beckwith <ianb@erislabs.net>

perl v5.12.4							    2011-07-12						    SURFRAW-UPDATE-PATH(1)
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