What would cause a script to work under one user account and not another? Here's an example of what I'm referring to.

Here's a simple script. Let's put it in a file called “thescript”.

Code:

#! /bin/bash
alias a='echo hello world'
a

Here are the results when this script is executed logged in under one user account.

Code:

$ thescript
hello world

Here are the results when this script is executed logged in from a different user account.

Code:

$ thescript
command 'a' not found

The second account doesn't seem to recognize the defined alias within the script. And I say within the script because I can manually define an alias from the command line, and it works just fine. Both accounts are on the exact same system. Each account has its own version of the script which is owned by the account. If it matters, this system is running Redhat linux 6.2. Any ideas???