Remove carriage return in Unix

Question

What is the simplest way to remove all the carriage returns \\r from a file in Unix?

Answer 1

The simplest way on Linux is, in my humble opinion,

sed -i 's/\r$//g' 

The strong quotes around the substitution operator 's/\r//' are essential. Without them the shell will interpret \r as an escape+r and reduce it to a plain r, and remove all lower case r. That's why the answer given above in 2009 by Rob doesn't work.

And adding the /g modifier ensures that even multiple \r will be removed, and not only the first one.