String replacing in VIM.

To replace a string with vim do the following:

:%s/string/replace string/g

% - means search and replace in whole file
If you want to replace stuff in certain portion of the file you can do following:

:20,50 s/string/replace string/g

:20,50 will search and replace string in rows between 20 and 50

Escaping special chars with \. Look at following example. I need to replace /usr/src/ with /var/log/archive in one of my scripts:

:%s/\/usr\/src/\/var\/log\/archive/g