cl@datlog.co.uk (Charles Lambert) (03/12/88)
There have been several occasions when I've wanted a program to know where
it was invoked from, and never found a satisfactory way. Two examples:
1. A user-interface tool that dispatches other tools. For security,
I'd like the interface tool to dispatch it's helpers from the
same installation directory, without having to hard-code the
path into it. That way, I would have a "tool capsule" that can
be installed anywhere without the risk of people putting Trojan
Horses (tools with the same name that do something naughty) in the
path.
2. Self-documenting shell scripts. If a shell script new where it was,
it could use its own commentary as online documentation.
Has anyone implemented successful schemes like this?
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Charles Lambert