[Novalug] How can script know if it's been 'sourced' rather than 'called'?

[John Franklin]

On Apr 6, 2007, at 2:42 PM, Ben Creitz wrote:

> I have little script which starts ssh-agent for a given period of time
> and loads a private key.  The script must be "sourced" with source or
> . in order to work, so that the calling shell can access the env vars
> that ssh-agent exports.
>
> Is there a way for the script to fail and echo proper usage if
> somebody calls it directly?  Of course, I can remove the execute bit.
> But I would like to avoid people calling it with

I would suggest you test if the env vars you need are set or not,  
which is the failure mode anyway.

jf
-- 
John Franklin
franklin at elfie.org
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