Useful Open Source Tools Summary

cURL:a command line tool for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, HTTP, HTTPS, IMAP, IMAPS, etc.. It supports SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP form based upload, proxies, cookies, user+password authentication (Basic, Digest, NTLM, Negotiate, kerberos...), file transfer resume, proxy tunneling and a busload of other useful tricks.

Memcached:an in-memory key-value store for small chunks of arbitrary data (strings, objects) from results of database calls, API calls, or page rendering. It's intended for use in speeding up dynamic web applications by alleviating database load. To get started, see this great blog for python and another one for MySQL and python.

GIT VS SVN

SVN is one repo and lots of clients. GIT is a repo with lots of client repos, each with a user. It's decentralised to a point where people can track their own edits locally without having to push things to an external server.

SVN is designed to be more central where GIT is based on each user having their own GIT repo and those repos push changes back up into a central one. For that reason, GIT gives individuals better local version control.

I would definitely recommend git over subversion; its simply so much more versatile and allows "offline development" in a way subversion never really could. Its available on almost every platform imaginable and has more features than you'll probably ever use.

reference: http://stackoverflow.com/questions/161541/svn-vs-git