Bash script to setup /etc/init.d/disable-transparent-hugepages on multiple nodes

disable-transparent-hugepages.sh

nodes=(rs0p rs0s)

for i in "${nodes[@]}"; do ssh -ti ~/.ec2/your_aws_key_pair.pem "ec2-user@$i.onliquid.com" 'sudo touch /etc/init.d/disable-transparent-hugepages && sudo bash -c "echo \"#!/bin/sh
### BEGIN INIT INFO
# Provides:          disable-transparent-hugepages
# Required-Start:    $local_fs
# Required-Stop:
# X-Start-Before:    mongod mongodb-mms-automation-agent
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Disable Linux transparent huge pages
# Description:       Disable Linux transparent huge pages, to improve
#                    database performance.
### END INIT INFO

case \\\$1 in
  start)
    if [ -d /sys/kernel/mm/transparent_hugepage ]; then
      thp_path=/sys/kernel/mm/transparent_hugepage
    elif [ -d /sys/kernel/mm/redhat_transparent_hugepage ]; then
      thp_path=/sys/kernel/mm/redhat_transparent_hugepage
    else
      return 0
    fi

    echo '"'"'never'"'"' > \\\${thp_path}/enabled
    echo '"'"'never'"'"' > \\\${thp_path}/defrag

    unset thp_path
    ;;
esac
\" > /etc/init.d/disable-transparent-hugepages" && sudo chmod 755 /etc/init.d/disable-transparent-hugepages && sudo chkconfig --add disable-transparent-hugepages && sudo /etc/init.d/disable-transparent-hugepages start && cat /sys/kernel/mm/transparent_hugepage/enabled && cat /sys/kernel/mm/transparent_hugepage/defrag'; done