[HACKERS] How to insert the values of .sql file (dump file) into postgresql 8.1

[sai srujan]

 Hi....
              This is srujan and I am beginner of postgresql 8.1 and I have
just stopped using mysql and i would like to use the dump (.sql file)
created in it. I would like transfer the databases in my sql to postgresql
8.1. Please do reply. I am waiting for it.
Thanks in Advance