Add help option and usage output

1 files changed, 10 insertions, 0 deletions

diff --git a/zkfacade/src/main/sh/vespa-zkcli b/zkfacade/src/main/sh/vespa-zkcli
index ce945237847..318836ec574 100755
--- a/zkfacade/src/main/sh/vespa-zkcli
+++ b/zkfacade/src/main/sh/vespa-zkcli
@@ -70,9 +70,19 @@ findhost
 
 # END environment bootstrap section
 
+usage() {
+    echo "Run Zookeeper command-line client"
+    echo "The following options are recognized:"
+    echo ""
+
+    echo "-h|-help)              print this help text"
+    echo "-nosudo                do not use sudo when running command"
+}
+
 sudo="sudo -u ${VESPA_USER}"
 while [ $# -gt 0 ]; do
     case $1 in
+        -h|-help)        usage; exit 0;;
         -nosudo)         shift; sudo="" ;;
         *)               echo "Unrecognized option '$1'" >&2; exit 1;;
     esac