Vi: Search and Replace

Eh oui, à l'heure de WISYWIG omniprésent, l'éditeur vi reste toujours irremplaçable pour éditer des fichiers système. Voici un extrait de la formidable doc de Felix Gers :

Search (Wraped around at end of file):

Search STRING forward :   / STRING.
Search STRING backward:   ? STRING.
Repeat search:   n
Repeat search in opposite direction:  N  (SHIFT-n)

Replace: Same as with sed, Replace OLD with NEW:

First occurrence on current line:      :s/OLD/NEW
Globally (all) on current line:        :s/OLD/NEW/g
Between two lines #,#:                 :#,#s/OLD/NEW/g
Every occurrence in file:              :%s/OLD/NEW/g