On 02/12/2013 11:10 AM, Robert Bonomi wrote:
Date: Tue, 12 Feb 2013 08:53:37 -0600
From: Tim Daneliuk <tun...@tundraware.com>
To: FreeBSD Mailing List <freebsd-questions@freebsd.org>
Subject: Was I Sourced?
Is there a way for script to determine whether is was sourced
or forked off as a subprocess when it was invoked?
I have a script that needs to be sourced to work properly and
I want to warn the luser if they exec or subshell it instead.
a 'sourced' script does -not- honor a shebag line.
you can exploit that.
The executable script /usr/local/bin/source_only;
#!/bin/sh
echo Error: this script must be sourced
Your script:
#!/usr/local/bin/source_only
{cmd}
{cmd}
{cmd}
{cmd}
{cmd}
{cmd}
...
...
Trying to do it totally self-contained is not easy.
Actually, it's not that hard. Setting the shebang line to this does
the trick:
#!/bin/echo "This Script Must Be Sourced!!!!"
Thanks to all who replied on this one ...
--
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Tim Daneliuk
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