Dos batch file string, path manipulation, for /f links

path manipulation: (note path manipulators do not work with user defined variables, only with command line args or for variables, same info can be seen in the help for /?)
http://blogs.msdn.com/b/ben/archive/2007/03/09/path-manipulation-in-a-batch-file.aspx

string manipulation:
http://www.dostips.com/DtTipsStringManipulation.php

for/token/delim
http://www.robvanderwoude.com/ntfortokens.php