how to remove the ^M character in unix.

http://www.vim.org/tips/tip.php?tip_id=26

http://www.computing.net/unix/wwwboard/forum/6031.html

http://web.mit.edu/answers/dialup/other_clean_ctrl_m.html

http://www.physics.ohio-state.edu/~faqomatic/fom-serve/cache/49.html


here is a code to remove the CTRL+M characters in a file.
http://forge.novell.com/modules/xfref_library/detail.php?reference_id=2358