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Here "^M" is NOT "SHIFT+6" and "M". Type CTRL+V+M to get it instead.
Its shortest and easy. And its sed!, which is available by default in all linux flavours.. no need to install extra tools like fromdos.
There are 4 alternatives - vote for the best!
The old dos2unix from sysutils has been deprecated on Debian systems to this tool.
This method will also convert mac line endings.
If you can do better, submit your command here.
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I like sed too, just wish my version included the -i option. :) BTW, if you don't want to explain how to enter a carriage return, you can try this:
sed -i 's/'$'\r''//'you should try the dos2unix command!
Adding a 'g' for global at the end to remove all instances of '^M" in the file.
sed -i 's/^M//g' file