in reply to Re: Slicing the output of a command
in thread Slicing the output of a command

That is beautiful TomDLux. Thus, a demonstration for the OP.

my @foo = `cat very_large_file | head -4`;

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Re^3: Slicing the output of a command
by BrowserUk (Patriarch) on Jul 10, 2015 at 03:35 UTC

    Why cat the whole file just to discard all but the first four lines:

    my @foo = `head -4 very_large_file`;

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      +1 BrowserUk. I'm not sure if the behavior is the same in Windows, but the 'cat command' receives a PIPE signal and exits once count lines have been read by the 'head command'.

        Windows has no signals, so no SIGPIPE there.

        Alexander

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