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Getting a Grip on GNU grep

by obsaysditto on 6/10/10, 6:10 PM with 2 comments

• by bnoordhuis on 6/10/10, 8:06 PM

  From TFA:

    grep '[[:punct:]]$' files
  

  I suspect the author has grep aliased to `egrep` or `grep -E` because [:punct:] is an extended regular expression and GNU grep defaults to basic RE mode.

• by davnola on 6/10/10, 8:39 PM

  Before you invest time in grep, take a look at ack-grep http://betterthangrep.com/.

    ack-grep --thppt