How to detect if a script is being sourced

Posted by brianegge on Stack Overflow See other posts from Stack Overflow or by brianegge
Published on 2010-04-21T13:28:23Z Indexed on 2010/04/21 15:23 UTC
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bash

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ksh

I have a script where I do not want it to call 'exit' if it's being sourced. Initially I though checking if $0 == bash but this has problems if the script is sourced from another script, or if the user sources it from ksh. Is there a reliable way of detecting if a script is being sourced?

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