ssh completion using .ssh/config

completion/ssh.completion.bash

@@ -0,0 +1,13 @@
+#!/bin/bash
+# Bash completion support for ssh.
+
+export COMP_WORDBREAKS=${COMP_WORDBREAKS/\:/}
+
+_sshcomplete() {
+    if [ -f $HOME/.ssh/config ]; then
+        COMPREPLY=($(compgen -W "`ruby -e"puts open('${HOME}/.ssh/config', 'r') { |f| f.readlines }.find_all { |l| l =~ /^Host/ }.inject([]) { |hosts, line| hosts << line[5..-1].split }.flatten.sort.uniq"`" -- ${COMP_WORDS[COMP_CWORD]}))
+        return 0
+    fi
+}
+
+complete -o default -o nospace -F _sshcomplete ssh