Hey Venkat,
To do a silent install you will need a .prvc file which is based on an ECPXXXXXX number. To get one of these you will need to login to My Esri
Once you have logged in click on My Organization -> Licensing
License ESRI Products:
Product: ArcGIS Enterprise
Version: 10.7-10.7.1
License Type: ArcGIS Server
Licenses: Server licensing roles only
Click Next
Tick on the Notebook license you want to generate the file for. Click Next
Fill in your details on the next page. Click next.
Finally select how you would like to recieve your file (email or download)
You can then upload the afile to your ec2 and use it as part of your install.
Now for the install itself once you have unzipped the directory if you "cd" into the directory it unzipped to you should be able to see the Setup file using "ls"
If the tar folder is in your home directory you would do something like so
tar -zxvf ArcGIS_Notebook_Server_Linux_1071.tar.gz
cd ArcGIS_Notebook_Server_linux_1071
ls
The above will unzip and navigate to the folder and show all the files in the root of the Notebook install directory. You should then be able to run your install command.
Let me know if any of that doesn't make sense!
Thanks
Ben