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  • Got a Score:5 Comment 2011-09-27

  • 24

    Days Read in a Row 2011-05-04

  • Posted a Comment 2010-11-03

  • Had a Comment Modded Up 2011-01-10

  • Years Read 2012-11-16

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egrep patterns are full regular expressions; it uses a fast deterministic algorithm that sometimes needs exponential space. -- unix manuals