Shulou(Shulou.com)06/02 Report--

Remove ^M from source text

[Problem Description]:

For line feed, carriage return (0A 0D) is used under window, carriage return (0A) is used under unix. In this way, when copying files from window to unix, there will always be ^M. How to filter newlines (0D) of windows files under unix?

Solution:

1. In vi: first open the file using vi, then press ESC, then type the command:

:%s/^M// #Replace:%s/^M$//g #Full Text Replace

2. Use the command:

cat source_file | tr -d "^M" > destination_file;

Note that "^M" refers to Ctrl+V and Ctrl+M, which must be entered manually, not pasted.

end.

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