Zookeeper - Create an ephemeral znode

Please follow the following steps to create an emphermal znode:

Login to CloudxLab
Launch Zookeeper client: zookeeper-client
Check if the znode /cloudxlab exists using:
```
get /cloudxlab
```
If not, create it using the following command:
```
create /cloudxlab "mydata"
```
Check if a znode with your username exists, using:
```
get /cloudxlab/<<YourUsername>>
```
If not, create your znode inside /cloudxlab using the following command:
```
create /cloudxlab/<<YourUserName>> "AHA!"
```
For example, if your username is john1234, the command will look like:
```
create /cloudxlab/john1234 "AHA!"
```
Now check if it is correctly created using:
```
get /cloudxlab/<<YourUsername>>
```
Create an ephemeral znode with name "aneph" inside node created in previous exercise using the following command: create -e /cloudxlab/<<YourUsername>>/aneph 'online-session' If your username is john1234, the command will look like: create -e /cloudxlab/john1234/aneph 'online-session'

Check if it is created correctly using a commands like:

  (1) ls /cloudxlab/john1234

  (2) get /cloudxlab/john1234/aneph

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