maoling created ZOOKEEPER-3298:
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Summary: add a new CLI: "ll" to show the nodes vertically
Key: ZOOKEEPER-3298
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3298
Project: ZooKeeper
Issue Type: Sub-task
Reporter: maoling
the CLI "ls" is used to show the nodes horizontally, we also need a new cli
"ll" to show the nodes vertically, just like the linux os.
[zk: 127.0.0.1:22181(CONNECTED) 3] ls /
[a, admin, b, b1, barrier, brokers, cluster, consumers, controller_epoch,
hbase, isr_change_notification]
e.g.
[zk: 127.0.0.1:22181(CONNECTED) 4] ll /
a
admin
b
b1
barrier
brokers
cluster
consumers
controller_epoch
hbase
isr_change_notification
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