Find files with at least one CR LF

Question

I am on Linux. I have received a mixed list of files, which I have forgotten to verify beforehand. My editor (emacs) has used LF (\n) for some files which originally had CR+LF (\r\n) (!!). I have realized about this way too late, and I think this is causing me trouble.

I would like to find all files in my cwd which have at least one CR+LF in them. I do not trust the file command, because I think it only checks the first lines, and not the whole file.

I would like to check whole files to look for CR + LF. Is there a tool for that, or do I need to roll my own?

Answer 1

You can use this grep command to list all the files in a directory with at least one CR-LF:

grep -l $'\r$' *

Pattern $'\r$' will file \r just before end of each line.

Or using hex value:

grep -l $'\x0D$' *

Where \x0D will find \r (ASCII: 13).