On ubuntu , when i run git svn, i get following error

root@hostonnet:/usr/local/zend/share# git svn clone http://framework.zend.com/svn/framework/standard/trunk
git: 'svn' is not a git-command. See 'git --help'.
root@hostonnet:/usr/local/zend/share#

This is fixed by installing git-svn

sudo apt-get install git-svn