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how are aliases exported?

From: Linda Walsh
Subject: how are aliases exported?
Date: Fri, 13 Apr 2012 17:01:42 -0700
User-agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv: Gecko/20100228 Lightning/0.9 Thunderbird/ Mnenhy/

How can I export an alias so it survives across an exec?

I thought there was a way for them to be exported like vars or functions...
but neither work.

I have a prog that needs an alias defined, if it isn't, it
execs a program to define the alias which re-execs the first --
if the alias isn't defined on the 2nd execution, the program
fails (has a check to prevent looping)...it seems the alias isn't
staying defined across the exec....

shouldn't export -f work for aliases? -- as I don't think
it would work to have an alias the same name as a function
(or would it?....)  Either way.. How can you export an alias - simply!

I mean I could do it by re-instantiating them in a bash_env file, like
I have to do for arrays -- is the same required for aliases?    Both
are pretty ugly though...

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