CODEWITHSUNDEEP
linuxbashnewline
blueFast
blueFast

Reputation: 44381

Find files with at least one CR LF

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?

Upvotes: 5

Views: 2562

Answers (2)

y_ug
y_ug

Reputation: 1124

dos2unix can not only convert dos line ends (CR+LF) to unis (LF) but also display file information with a -i option. e.g.

sh-4.3$ (echo "1" ; echo "") > 123.txt 
sh-4.3$ unix2dos 123.txt 
unix2dos: converting file 123.txt to DOS format...
sh-4.3$ cat 123.txt ; hexdump -C 123.txt ; dos2unix --info='du' 123.txt
1

00000000  31 0d 0a 0d 0a                                    |1....|
00000005
       2       0  123.txt
sh-4.3$ dos2unix 123.txt 
dos2unix: converting file 123.txt to Unix format...
sh-4.3$ cat 123.txt ; hexdump -C 123.txt ; dos2unix --info='du' 123.txt
1

00000000  31 0a 0a                                          |1..|
00000003
       0       2  123.txt

Upvotes: 0

anubhava
anubhava

Reputation: 785276

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).

Upvotes: 6

Related Questions