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Accepted
David Oneill
Asked: 2013-10-03 11:41:40 +0800 CST

Find files where the filename is only different by case

  • 772

I need to get a list of all the files that only differ in case.

I.e., if I have a folder (with sub-folders) with the files:

one.txt
ONE.txt
two.txt
three.txt
three.TXT
four.txt
five/5.txt
five/6.txt
five/6.Txt

I want some bash magic that will spit out:

one.txt
ONE.txt
three.txt
three.TXT
five/6.txt
five/6.Txt
command-line

2 Answers

  1. Best Answer
    ls -R | uniq -Di

    should do it for you, supposing your locale sorts upper and lower case letters together. If your local is C, all bets are off.

    export LC_ALL=C
    • 4

  2. This is closest to what you want:

    find . -type f | sort | uniq -iD | awk -F"\.\/" '{print $2}'
    • 2