I found a workaround: Remake findutils 4.1.7-4 from source, and use /usr/local/bin/find.exe instead of /usr/bin/find.exe.
Here's what I did: $ cd /usr/src/findutils-4.1.7-4 $ ./configure $ make $ make install $ mv /usr/bin/find.exe /usr/bin/find.exe.old $ cd /bin $ ln -s /usr/local/bin/find.exe Now the test procedure gives correct case-insensitive results: $ find test -iregex ".*file.*" test/file-a test/File-b > Even with the -iregex option, the find command performs case-sensitive > matching. > > Test procedure: > > $ mkdir test > $ touch test/file-a > $ touch test/File-b > $ find test | grep -i ".*file.*" > test/file-a > test/File-b > > $ find test -iregex ".*file.*" > test/file-a > > $ find test -iregex ".*File.*" > test/File-b > > I'm using Cygwin 1.5.12-1 under Windows XP Professional Ver 5.1 Build 2600 > Service Pack 1, findutils 20041227-1. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/