April 2008
How to Change the Default Text Editor on Ubuntu With Nautilus | Webmaster Tips
Just edit your ~/.local/share/applications/defaults.list (create it if you don't have one) and add the following text:
[Default Applications]
text/plain=gvim.desktop
That is, if you plan on using gvim, of course. Replace gvim with the appropriate filename otherwise (e.g., scite.desktop).
January 2008
Frequently-Asked Questions about sed, the stream editor
(via)ssed and Perl solution
The best solution for multiple files in a single directory is to use ssed
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(2 marks)