I am confused to chose between C++,Python,Perl.
Writing scripts in C++, you'll just die of brain burn.
Python has very good shell integration and I heard it can do funky stuff with COM/OLE with a few lines of code where you'd need a few pages worth of impossible to understand COM code to do the same in C. Also basic shell tasks like spawning processes, piping from / to their output, regular expressions, parsing files, etc are a breeze. There are modules for INI files, csv files, etc.
Perl should be about the same, but you have to like the scary syntax. -- http://mail.python.org/mailman/listinfo/python-list