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finding cr-lf files aka dos files with ^M characters

Terminal - finding cr-lf files aka dos files with ^M characters
grep -UIlr "^M" *
2010-08-20 21:16:34
User: randy909
Functions: grep
0
finding cr-lf files aka dos files with ^M characters

Where ^M is entered by ctrl-v-m (v then m). Especially useful on cygwin when checking into a version control system. If you're not using all cygwin tools (e.g. strawberry perl instead of cygwin perl) you'll find yourself dealing with this constantly.

-U tells grep to process the file as binary; it needs this to work

-I ignores binary files so you won't get false positives

-l only prints the filename instead of the offending lines

-r recursive

Alternatives

There are 3 alternatives - vote for the best!

Terminal - Alternatives
find $(pwd) -type f -exec grep -l "$(echo "\r")" {} \;
2009-02-07 18:53:00
User: mnikhil
Functions: find grep
1

its useful to run dos2unix command later on them.

find . -type f -exec fgrep -l $'\r' "{}" \;
2010-08-20 23:26:56
User: putnamhill
Functions: fgrep find
Tags: find fgrep
1

Looking for carriage returns would also identify files with legacy mac line endings. To fix both types:

perl -i -pe 's/\r\n?/\n/g' $(find . -type f -exec fgrep -l $'\r' "{}" \;)

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