Improve usability

deploy.sh

@@ -18,6 +18,10 @@ defaultDeployDir='/pbs/throng/lsst/software/arc6-client'
 # Target directory to deploy to
 #
 deployDir=${1:-${defaultDeployDir}}
+if [[ ! -d ${deployDir} ]]; then
+    echo "${thisScript}: could not find deploy directory ${deployDir}"
+    exit 1
+fi
 
 #
 # Pack and copy the relevant files to the target directory