idle_node_shutdown.sh

#!/bin/bash

fail() {
   echo "Failed: $1"
   exit 1
}

NODES=$(ssh mgt "diagnose -n | egrep '^comp[0-1][0-9][0-9].*Idle' | awk {'print \$1'}")
WORDS=$(echo ${NODES} | wc -w)
let "NUM_OF_NODES = $WORDS - 1"
NODES=$(echo $NODES | tr ' ' ',')

if [[ $? -ne 0 ]]; then
   fail "Query mgt for idle nodes"
fi

echo -e "About to shutdown $NUM_OF_NODES nodes:\n "
echo "${NODES}"
echo
read -p "Are you sure? " -n 1 -r
echo

if [[ "${REPLY}" =~ ^[Yy]$ ]]; then
   xdsh ${NODES} 'shutdown -h now'
fi