Just wondering if this is not platform specific. If you bring windows text files to Un*x (using your USB key and not FTP ascii mode for ex.), it's probably what you need (and what the OP needed :). But in general (supposing an ASCII world) why not spell in full i.e s/\015//g; On the mac, line-endings are ^M and that's the \n escape, isn't?, so my guess is that \r will be different...but I have no mac (yet) and cannot prove it ;) 

% stephan@armen (/esc) %
% cat -evnt hi1; echo; perl -lpe 's/\015//g' hi1 | cat -evnt
     1  hello world^M wake up^M please$
     2  and be good$

     1  hello world wake up please$
     2  and be good$

[download]
hth --steph

In reply to Re^2: How to delete ^M character using regex by sgt
in thread How to delete ^M character using regex by lovekumar

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