How to grep for windows and mac EOLs?

Question

I have a directory with *.txt files.

How can I list the txt filenames that are still having non-unix eol's? So windows and mac eols.

Answer 1

"mac eols" (carriage returns) are rare since around 2000 (i.e., since OSX was first released). For finding files with CRLF endings, the file utility is helpful, since it is looking at more than grep might.

Further reading

• How to test whether a file uses CRLF or LF without modifying it?
• How to detect dos format files in git bash
• How do you search for files containing dos line endings (CRLF) with grep on Linux?
• An Illustrated History of macOS

Answer 2

You could use "file" command. When a file is using CRLF EOL, "file" returned

filename: ASCII text, with CRLF line terminators

for UNIX EOL, it returns:

filename: ASCII text