1 files changed, 12 insertions, 1 deletions
diff --git a/hydras b/hydras
index 2351316..6810898 100755
--- a/hydras
+++ b/hydras
@@ -21,20 +21,31 @@
 # Basename configuration
 BASENAME="`basename $0`"
 
-if [ -z "$1" ]; then
+function usage {
   echo "usage: $BASENAME <hydra1> [<hydra2> ... <hydraN>] -- <command>"
+  exit 1
+}
+
+if [ -z "$1" ]; then
+  usage
 fi
 
 for param in $*; do
   shift
 
   if [ "$param" == "--" ]; then
+    has_delimiter="1"
     break
   fi
 
   hydras="$hydras $param"
 done
 
+if [ -z "$has_delimiter" ]; then
+  echo "missing command delimiter --"
+  usage
+fi
+
 for hydra in $hydras; do
   echo "Issuing $* on hydra $hydra..."
   hydra $hydra $*