How to list all collections in solr-4.7.2

[rashi gandhi]

Hi all,

I have setup two solr-4.7.2 server instances on two diff machines with 3
zookeeper severs in solrcloud mode.

Now, I want to retrieve list of all the collections that I have created in
solrcloud mode.

I tried LIST command of collections api, but its not working with
solr-4.7.2.
Error: unknown command LIST

Please suggest me the command, that I can use.

Thanks.