Redis setup script for multiple instances on different ports

redis-setup.sh

#!/bin/bash
# make sure this script is executable
# place in /var/redis/
# run by issuing: ./redis-setup.sh PORT_NUMBER

if [ "$(id -u)" != "0" ]; then
   echo "This script must be run as root" 1>&2
   exit 1
fi

if [ $# -gt 0 ]; then

  REDISPORT=$1

  cat redis.init.conf | sed -e "s/\${REDISPORT}/$REDISPORT/" > /etc/init.d/redis_$REDISPORT
  chmod 755 /etc/init.d/redis_$REDISPORT
  echo "Redis startup script created at: /etc/init.d/redis_$REDISPORT"

  cat redis.setup.conf | sed -e "s/\${REDISPORT}/$REDISPORT/" > /etc/redis/$REDISPORT.conf
  echo "Redis config created at: /etc/redis/$REDISPORT.conf"

  mkdir /var/redis/$REDISPORT
  chmod 775 /var/redis/$REDISPORT
  echo "Redis data at: /var/redis/$REDISPORT"

  /etc/init.d/redis_$REDISPORT start

  echo
  echo "Ping your host to make sure it works by issuing:"
  echo "redis-cli -p $REDISPORT"

else
	echo 'No port number given'
fi

Instructions to install Redis:

wget http://download.redis.io/redis-stable.tar.gz
tar xvzf redis-stable.tar.gz
cd redis-stable
make
make install

Then run the above setup script to create multiple instances of Redis running on separate ports.

sudo sh setup.sh PORT_NUMBER