GNU logs - #26726, boring messages

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Subject: bug#26726: Support grepping multi-lines fixed-strings
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To: "ziyunfei" <446240525@HIDDEN>
Subject: bug#26726: Acknowledgement (Support grepping multi-lines
 fixed-strings)
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Date: Mon, 01 May 2017 06:54:02 +0000

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Subject: bug#26726: Support grepping multi-lines fixed-strings
Resent-From: Jim Meyering <jim@HIDDEN>
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From: Jim Meyering <jim@HIDDEN>
Date: Mon, 1 May 2017 21:48:20 +0900
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On Mon, May 1, 2017 at 3:38 PM, ziyunfei <446240525@HIDDEN> wrote:
> I have the same need as http://stackoverflow.com/questions/14631794/check-if-file-contains-some-text-not-regex-in-unix#comment20438757_14631832.
>
> $ cat file
> foo
> bar
>
> $ echo "$fixed_string"
> bar
> foo
>
> $ grep -Fzq "$fixed_string" file && echo "Matched" || echo "Not matched"
> Matched # false positive, -z doesn't apply to -F
>
>
> $ [[ "$(cat file)" = *"$fixed_string"* ]] && echo "Matched" || echo "not matched"
> not matched # my workaround

Consider using perl, i.e., this matches:

   $ pat='foo
  bar'
  $ printf '%s\n' foo bar | perl -0 -ne 'm!\Q'"$pat"'\E! or die'

This does not match:

  $ printf '%s\n' bar foo | perl -0 -ne 'm!\Q'"$pat"'\E! or die'
  Died at -e line 1, <> chunk 1.

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tags 27398 moreinfo

severity 26726 wishlist

tags 26205 wontfix

severity 26146 wishlist

Last modified: Mon, 25 Nov 2019 12:00:02 UTC

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