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Your code can work as-is if you can change the way you call the script. Instead of a shell redirect (myprogram.pl < myfile.txt), leave out the < and let the diamond do the work (leaving STDIN alone): myprogram.pl myfile.txt Instead of a shell pipeline (some_process | some_filter | myprogram.pl), let the magical open (inside the diamond) do the work: myprogram.pl 'some_process | some_filter |' BTW, for efficiency, you might want to slurp <> instead of repeatedly concatenating lines. (Reallocation of strings and all that.... Does anyone have a link to a quasi-official explanation of why it's more efficient?) -- In reply to Re: Multiple STDIN sources
by TilRMan
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