Convert all EOL (dos->unix) of all files in a directory and sub-directories recursively without dos2unix

For all files in current directory you can do it with a Perl one-liner: perl -pi -e 's/\r\n/\n/g' * (stolen from here)

EDIT: And with a small modification you can do subdirectory recursion:

find | xargs perl -pi -e 's/\r\n/\n/g'

You can use sed's -i flag to change the files in-place:

find . -type f -exec sed -i 's/\x0d//g' {} \+

If I were you, I would keep the files around to make sure the operation went okay. Then you can delete the temporary files when you get done. This can be done like so:

find . -type f -exec sed -i'.OLD' 's/\x0d//g' {} \+find . -type f -name '*.OLD' -delete

Do you have sane file names and directory names without spaces, etc in them?

If so, it is not too hard. If you've got to deal with arbitrary names containing newlines and spaces, etc, then you have to work harder than this.

tmp=${TMPDIR:-/tmp}/crlf.$$trap "rm -f $tmp.?; exit 1" 0 1 2 3 13 15find . -type f -print |while read namedo    tr -d '\015' < $name > $tmp.1    mv $tmp.1 $namedonerm -f $tmp.?trap 0exit 0

The trap stuff ensures you don't get temporary files left around. There other tricks you can pull, with more random names for your temporary file names. You don't normally need them unless you work in a hostile environment.