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I’m trying to pipe the output of a command like this:
some_command | ruby -ne "puts $_ if some_condition($_)"
However, all I see are empty lines. Where is each line being stored?
This should work just fine. As an example,
ls | ruby -ne 'puts $_ if $_[0] == "r"'prints just what I’d expect. You should ensure that yoursome_commandis in fact outputting to stdout.