fi
if [ -z "`eval $GET_ID`" ]; then
- echo "$0: ERROR: No identities found"
+ echo "$0: ERROR: No identities found" >&2
+ exit 1
+fi
+
+if [ "$#" -lt 1 ] || [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
+ echo "Usage: $0 [-i [identity_file]] [user@]machine" >&2
exit 1
fi