In script.pl -y goodbye | script.pl -x, the effect of the "|" in the shell command is to provide the STDOUT of the first script as the STDIN of the second script, just as if you'd written:

script.pl -y goodbye >tempfile
script.pl -x <tempfile

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So for this case you don't need to know anything about pipes and IPC, just read from STDIN.

In reply to Re: checking for piped input data by hv
in thread checking for piped input data by Anonymous Monk

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