Retrieve the hostname from an existing StarCluster cluster on the command-line

starcluster-hostname

#!/bin/bash

if [[ $# != 1 ]]; then
	echo "ERROR: a cluster name must be provided" 1>&2
	exit 1
fi

cluster_meta="$(starcluster listclusters $1 2>&1)"

if [[ $? != 0 ]]; then
	echo "ERROR: unable to find information about cluster '$1'" 1>&2
	msg=$(echo "${cluster_meta}" | nl -b n -w 1 -s '| ')
	echo -e "Message was:\n$msg" 1>&2
	exit 1
fi

echo "${cluster_meta}" | grep "master running" | sed -e 's/.*master.*\(ec2-.*\)/\1/g'

Fixed a typo on line 17 that would otherwise merge the starcluster output into a single line

Thanks for writing this!