Work with SVN from terminal

Work with a svn project:
svn chk https://my_svn_server

svn update: "Update from SVN-Server"
svn add

Install Ruby on Rail in 5 steps (Mac)

1. Install Xcode
2. Install MacPorts
3. Install MySql-DB using command line tool ports: ports install mysql5 +server
4. Update Rails using command line tool gem: "sudo gem update"
5. sudo gem install daemons gem_plugin mongrel mongrel_cluster --include-dependencies
6. sudo gem install mysql