pgrep: output format

• ordinary grep produces many different kinds of output

• With one input file:

        matching line
        another matching line

• With multiple input files:

        filename1: matching line
        another file: another matching line

• With -l:

        filename1
        another file

• With -q (or was it -s?):

• The printing logic would have been quite complicated

• Except I used a trick:

              printf $format, $file, $_, $.;

• What is in $format?

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Copyright © 2005 M. J. Dominus