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>From suter  Mon Nov 26 14:28:45 2001
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Date: Mon, 26 Nov 2001 14:12:48 +1000 (GMT+1000)
From: Raymond Smith <zzrasmit at uqconnect.net>
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Subject: Re: [H-GEN] change directory shell script reverting to orginal
 directory
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[ Humbug *General* list - semi-serious discussions about Humbug and  ]
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Hi ET,

On Mon, 26 Nov 2001, Easo Thankachen wrote:
> i have this script to change to a directory and display the directory
> that it has changed to with some basic validations. But it display the
> correct directory and then reverts back to the directory the command
> was called.

This can be a little confusing when you are getting started. The answer
is:

>#!/bin/sh

starts a whole new command shell. When you change directory within the
script, you are doing so within this shell and not the parent shell
that executed the command.

If instead you ran your script as (under bash):

$ source cwd directory

then the script would be executed by the current shell and the directory
would be changed as you would expect. This is obviously a bit inconvenient
but you could add an alias to do it (again in bash):

$ alias cwd='source ~/bin/cwd $1'

or you could write out the command here (being careful to quote newlines).

Cheers,

Raymond
---
raymond at humbug.org.au   Just once, I'd like to quote someone famous in
			my .sig and spell their name right -- Mi.


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