Convert DOS and Windows line breaks to Unix line breaks
Contributed by skreuzer 
Tagged: UNIX These one liners will convert a file with DOS (or windows) line breaks to a file with Unix line breaks
DOS/Windows to Unix:
tr -d '\15\32' < dosfile.txt > unixfile.txt
Under Solaris this will work as well:
dos2unix dosfile.txt unixfile.txt
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Hollister said on October 1, 2010
That doesn’t work either…it just deletes all the “R” characters.
You need to escape the CR and make it global. This works better:
sed -i ’s/rn/n/g’ file.txt