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Top Forums Shell Programming and Scripting pseudo code needs help coding Post 302306331 by tuxhats on Sunday 12th of April 2009 10:56:27 AM
Old 04-12-2009
Thank you bakunin!! I have the students locked into a jail and also have lshell as the only shell they have access to. The lshell limits(by config) the commands they can use(--help,clear,ls,mkdir,rm,g++,java,javac,./,vim,mv,cp, and firefox). I have re-written firefox limiting them to http://mylocalwebserver where I have lessons for them. Their access is by "ssh -X user@myserver". They cannot see others or the file structure and are locked in by lshell's command limits. They have no mail, talk, etc. available to bypass the setup. Pretty cool. I just need a script to accomplish this goal I've stated.
OBJECTIVE:
What I am trying to avoid is two(2) different users sharing work via the same process!!! If two different users are using the same terminal, shut them down! I must shut this "cheating" process down!!!! Imagine, my students can only learn by doing work, not from copying others efforts.

Thanks again!!!
 

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ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME
atf-sh [-s shell] -- interpreter for shell-based test programs SYNOPSIS
atf-sh script DESCRIPTION
atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library. atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL. atf-sh executes the inter- preter, loads the atf-sh(3) library and then runs the script. You must consider atf-sh to be a POSIX shell by default and thus should not use any non-standard extensions. The following options are available: -s shell Specifies the shell to use instead of the value provided by ATF_SHELL. ENVIRONMENT
ATF_LIBEXECDIR Overrides the builtin directory where atf-sh is located. Should not be overridden other than for testing purposes. ATF_PKGDATADIR Overrides the builtin directory where libatf-sh.subr is located. Should not be overridden other than for testing purposes. ATF_SHELL Path to the system shell to be used in the generated scripts. Scripts must not rely on this variable being set to select a specific interpreter. EXAMPLES
Scripts using atf-sh(3) should start with: #! /usr/bin/env atf-sh Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh. Instead, you have to hardcode the path to atf-sh in the script and then use the -s option afterwards as a single parameter: #! /path/to/bin/atf-sh -s/bin/bash ENVIRONMENT
ATF_SHELL Path to the system shell to be used in the generated scripts. SEE ALSO
atf-sh(3) BSD
September 27, 2014 BSD
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