Returns a list of servers matching a pattern.

ec2-server

#!/bin/bash

h=$1
if [ -z $1 ]
then
  echo "Usage: `basename $0` <host pattern>"
  exit 1
fi

ec2-host | grep $h | awk '{split($0, a, "\t"); print a[2]}' | awk '{x = (!x) ? $0 : x "\n" $0;} END {print x;}'