Text processing from shell

[theApprentice()]

Hi guys,

I need to substitute some words in a file i.e 'Gnome' to 'KDE'.I know this can be done from the shell but unfortunately do not know what commands to use.Could someone please point me in the right direction.

Any additional information and links would be much appreciated.

Thanks

[anomie]

Google for sed tutorials.

[helen@troy ~]$ cat test-file 
Something something Gnome
This Gnome is something Gnome
Gnome Gnome

[helen@troy ~]$ sed 's/Gnome/KDE/g' test-file 
Something something KDE
This KDE is something KDE
KDE KDE

[theApprentice()]

Thanks.That's exactly what I needed!