topology

topology.sh

#!/bin/bash
while [ $# -gt 0 ] ; do
nodeArg=$1
exec< /home/hduser/scripts/topology.data
result=""
while read line ; do
ar=( $line )
if [ "${ar[0]}" = "$nodeArg" ] ; then
result="${ar[1]}"
fi
done
shift
if [ -z "$result" ] ; then
echo -n "/default-rack "
else
echo -n "$result "
fi
done

topology.data

10.0.1.97 /dc1/rack1
10.0.1.55 /dc1/rack2