Question

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Remove carriage return in Unix

I am reading some data generated by an external third party. I have noticed that the ASCII text in the file is interspersed with ^M characters, which I believe is character 13 in ASCII and represents a carriage return without linefeed.

Is there a one liner I can use to strip the ^M characters from the file?

I am running on Linux (Ubuntu).

Answer 1

You can use sed like this:

sed -i.bak 's/^M$//' infile.txt

To type ^M, you need to type CTRL-V and then CTRL-M.