buggrep - Bugs: bug #28981, grep -i '[A-Z]' finds only lower...


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bug #28981: grep -i '[A-Z]' finds only lower case

Submitter:  None
Submitted:  Mon 22 Feb 2010 03:34:56 PM UTC
Category:  None Severity:  3 - Normal
Item Group:  None Status:  Fixed
Privacy:  Public Assigned to:  None
Open/Closed:  Closed

Wed 17 Mar 2010 08:25:00 AM UTC, comment #1: 

This should work now.

Thank you for the bug report. This bug has been fixed in the
development sources, which can be downloaded using git from

Paolo Bonzini <bonzini>
Mon 22 Feb 2010 03:34:56 PM UTC, original submission:  

I have installed grep 2.5.4-2 as a part of a recent upgrade of my Cygwin environment.
I now have problems with some scripts that use 'grep -i' with a character class pattern.
It seems that the -i switch switches character class patterns to lower case instead of ignoring case.

(Using grep 2.5.4-2 on Cygwin.)

# Create a test data file containing one upper case and one lower case data line:
echo "abc" > data
echo "ABC" >> data

# A fixed uppercase pattern
# should return the upper case line only:
echo "Test 1: expect ABC"
grep 'ABC' data

# Using a pattern with a character class containing
# upper case letters should return the same result:
echo "Test 2: expect ABC"
grep 'A[B]C' data

# Adding a '-i' to the first test run (fixed pattern)
# should return both upper case and lower case lines:
echo "Test 2: expect abc ABC"
grep -i 'ABC' data

# Adding a '-i' to the second test run (character class pattern)
# should also return both upper case and lower case lines:
echo "expect abc ABC"
grep -i 'A[B]C' data

Does this only not work for me or can anyone reproduce this problem?

Thanks for your support!
Best regards,



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    Follow 2 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2010-03-17 bonzini StatusNone Fixed
        Open/ClosedOpen Closed

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