Slug,
I have a bash script I'm playing with that reads input from a pipe. I
want to add some error handling to the effect of when the script is
called by itself and no information is piped to it, it exits and/or
exits and complains. The problem I have is that I'm doing a "while read
line do" and if there's no data coming in, it sits there waiting on the
read. I've tried to use a if [ -s /dev/stdin ] conditional before the
while but to no success.
Does anybody have an idea on this or on how to test stdin?
examples:
:~>cat lines.txt | myscript.sh -takeinput
I've got input... echoing
line 1
line 2
line 3
:~>
:~>myscript.sh -takeinput
(sits here waiting for input or ctrl-c)
Thanks!
Mike Branda Jr.
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