Convert files with CR-terminated lines (as created by Mac OS X programs) into NL-terminated lines suitable for Unix programs

function crtonl { perl -i -ape 's/\r\n?/\n/g;' $* ; }
Many Mac OS X programs, especially those in Microsoft:Office, create ASCII files with lines terminated by CRs (carriage returns). Most Unix programs expect lines separated by NLs (newlines). This little command makes it trivial to convert them.
Sample Output
crtonl mymacfile.csv

-2
By: totoro
2009-03-25 20:28:32

What Others Think

I prefer flip www.stanford.edu/~craig/utility/flip/" rel="nofollow">http://ccrma-www.stanford.edu/~craig/utility/flip/
Aeon · 503 weeks and 6 days ago
hm, dunno what happened to the link. Here it is again: www.stanford.edu/~craig/utility/flip/" rel="nofollow">http://ccrma-www.stanford.edu/~craig/utility/flip/
Aeon · 503 weeks and 6 days ago
ccrma-www.stanford.edu/~craig/utility/flip/
Aeon · 503 weeks and 6 days ago
@totoro: I tested your function and it did not work: the lines become double lines. The correct solution is: function crtonl { perl -i -ape 's/\r\n/\n/g;' $* ; } You have to replace CR LF with LF.
haivu · 503 weeks and 5 days ago
On some system, use: dos2unix [file ...]
haivu · 503 weeks and 5 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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