This is what I get: $ echo HI | LANG=C grep '^[a-z]' $ echo HI | LANG=en_US.utf8... | Hacker News

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iso8859-1 on Dec 10, 2011 | parent | context | favorite | on: 2000x performance win

This is what I get:

    $ echo HI | LANG=C grep '^[a-z]'
    $ echo HI | LANG=en_US.utf8 grep '^[a-z]'
    $

How come?

p9idf on Dec 10, 2011 [–]

I was able to reproduce the bug. It could be a version thing.

  ; grep --version
  GNU grep 2.6.3
  ; echo A | LANG=en_US.utf8 grep '[a-z]'
  A

Ives on Dec 10, 2011 | [–]

No, I have the same version but not a similar result. I also have the en_US.utf8 locale installed.

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