remove ^M characters from file using sed

Question

I have this line inside a file:

ULNET-PA,client_sgcib,broker_keplersecurities
,KEPLER

I try to get rid of that ^M (carriage return) charact

Answer 1

alias dos2unix="sed -i -e 's/'\"\$(printf '\015')\"'//g' "

Usage:

dos2unix file

Answer 2

This is the better way to achieve

tr -d '\015' < inputfile_name > outputfile_name

Later rename the file to original file name.

Answer 3

I agree with @twalberg (see accepted answer comments, above), dos2unix on Mac OSX covers this, quoting man dos2unix:

To run in Mac mode use the command-line option "-c mac" or use the commands "mac2unix" or "unix2mac"

I settled on 'mac2unix', which got rid of my less-cmd-visible '^M' entries, introduced by an Apple 'Messages' transfer of a bash script between 2 Yosemite (OSX 10.10) Macs!

I installed 'dos2unix', trivially, on Mac OSX using the popular Homebrew package installer, I highly recommend it and it's companion command, Cask.