Detect presence of stdin contents in Bourne Shell

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Published on 2010-03-16T17:43:44Z Indexed on 2010/03/16 18:01 UTC
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I'm writing a Bourne Shell script that may or may not receive input from stdin (as in foo.sh < test.txt, non-interactively). How do I check whether there is anything on stdin, to avoid halting on while read -r line...?

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Detect presence of stdin contents in Bourne Shell - Developer IT

Detect presence of stdin contents in Bourne Shell

bourne-shell

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