Bash script to get a key from a list of memcached hosts, testing each one in turn

memcached-get.sh

#!/bin/bash

function getkey {
  echo "Checking $M for $2"
  HOST=$(echo $1 | cut -d':' -f1)
  PORT=$(echo $1 | cut -d':' -f2)
  echo "get $2" | nc -w1 $HOST $PORT
}

if [ $# -lt 1 ]; then
  echo "USAGE: $(basename $0) keyname"
  exit
fi

trap "exit" SIGINT SIGTERM

IFS=','
for M in $MEMCACHED_HOSTS; do
  getkey $M $1
done
unset IFS

Usage Example:

export MEMCACHED_HOSTS="a.example.com:11211,b.example.com:11211"
memcached-get somekey