HBASE-3941 'hbase version' command line should print version info

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1133211 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -245,6 +245,8 @@ Release 0.91.0 - Unreleased
                (Brock Noland)
    HBASE-3873  Mavenize Hadoop Snappy JAR/SOs project dependencies
                (Alejandro Abdelnur)
+   HBASE-3941  "hbase version" command line should print version info
+               (Jolly Chen)
 
   TASKS
    HBASE-3559  Move report of split to master OFF the heartbeat channel

bin/hbase

@@ -77,6 +77,8 @@ if [ $# = 0 ]; then
   echo "  migrate          upgrade an hbase.rootdir"
   echo "  hbck             run the hbase 'fsck' tool"
   echo "  classpath        dump hbase CLASSPATH"
+  echo "  version          print the version"
+
   echo " or"
   echo "  CLASSNAME        run the class named CLASSNAME"
   echo "Most commands print help when invoked w/o parameters."
@@ -259,6 +261,8 @@ elif [ "$COMMAND" = "zkcli" ] ; then
 elif [ "$COMMAND" = "classpath" ] ; then
   echo $CLASSPATH
   exit 0
+elif [ "$COMMAND" = "version" ] ; then
+  CLASS='org.apache.hadoop.hbase.util.VersionInfo'
 else
   CLASS=$COMMAND
 fi