dos2unix command

Question

I have this script

#!/bin/sh
for i in `ls -R`
do
  echo "Changing $i"
  fromdos $i 
done

I want to remove "^M" charcaters from many files which are in more subdirectories. I got this:

fromdos: Unable to access file

Is there somethig i'm missing?

Thanks in advance.

The variable $orig is undefined.

Luc M
– Luc M

2011-03-25 18:52:49 +00:00
Commented Mar 25, 2011 at 18:52 — Luc M
– Luc M, Commented Mar 25, 2011 at 18:52

Jonathan · Accepted Answer · 2011-03-28 12:41:29Z

2

ls -R lists everything, including directories. So you're telling fromdos to act on actual directories is some cases.

Try something like this:

find . -type f -exec fromdos {} \;

edited Mar 28, 2011 at 12:41

answered Mar 25, 2011 at 18:47

Jonathan

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4 Comments

Jonathan Over a year ago

Glad to hear it! If you'd hit the little 'accept answer' button, I'd be very grateful :-)

hornetbzz Over a year ago

adding path to find would be nice :-)

Jonathan Over a year ago

@hornetbzz Sorry, the find variant I usually use doesn't require it, so I rarely pass it.

hornetbzz Over a year ago

thx for the edit. I added the comment as I experienced a similar bad use of find/rm, as this may happen to everbody if not explicit :-)

hornetbzz · Accepted Answer · 2011-03-27 03:08:30Z

I guess you don't need a for loop.

Here is a quick panorama of solutions for files with extension ".ext" (such commands shall be somehow restrictive)

note : ^M is obtained with CTRL-V" + "CTRL-M"

# PORTABLE SOLUTION 
find /home -type f -name "*.ext" -exec sed -i -e 's/^M$//' {} \;

# GNU-sed
find /home -type f -name "*.ext" -exec sed -i -e "s/\x0D$//g" {} \;

# SED with more recent nux
find /home -type f -name "*.ext" -exec sed -i -e "s/\r$//g" {} \;

# DOS2UNIX
find /home -type f -name "*.ext" -print0 | while read -r -d "$(printf "\000")" -r path; do dos2unix $path $path"_new"; done

# AWK
 find /home -type f -name "*.ext" -print0 | while read -r -d "$(printf "\000")" -r path; do awk '{ sub("\r$", ""); print }' $path > $path"_new"; done

# TR
 find /home -type f -name "*.ext" -print0 | while read -r -d "$(printf "\000")" -r path; do cat $path | tr -d '\r' > $path"_new"; done

# PERL
 find /home -type f -name "*.ext" -exec perl -pi -e 's/\r//g' {} \;

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