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Re: bash edited while running

From: Eduardo A . Bustamante López
Subject: Re: bash edited while running
Date: Mon, 21 Oct 2013 14:27:47 -0700
User-agent: Mutt/1.5.21 (2010-09-15)

In this case, the problem is in how you deploy the scripts, and not
with bash. Don't change a running script, just write the new script
to a temp file and then replace the script.

That looks something like this:

  mv newscript oldscript

This way, bash will keep reading from oldscript, but new instances of
the script will use newscript instead. That's not just a bash issue,
but a general problem with deployments where you want to avoid
serving inconsistent content (some files updated and some not),
that's why you usually write everything to a location on the same
filesystem, and just issue a mv, which uses rename(2) under the hood.

Note that replacing a file is not the same as editing the file in

So, fix your environment, it's not a bash issue.

Eduardo Alan Bustamante López

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