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Asked: 2010-04-24 23:04:38 +0800 CST

Is export in bash alias of eval function which many other scripts have?

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I don't have much experience with export but it gives me the impression that it's quite similar with eval.

Am I wrong or not?

bash export

1 Answers

  1. Normally variables assigned to are only available to the current shell process. export makes sure that child processes have the environment variable set as well.

    foo=123
echo "$foo"
bash -c 'echo "$foo"'
export foo=123
echo "$foo"
bash -c 'echo "$foo"'
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