About linux : Databricks-tar-command-using-sh-for-multiple-files-as-opposed-to

Databricks Community Edition use cells in Notebooks.

The following works:

%sh 
tar -cvf AA_01.tar /FileStore/tables/my_cloud_dir tar1.txt tar2.txt tar3.txt 

The following works but shows no output:

%sh 
tar -tvf aa_01.tar 

1. Where is the output stored?

The following does not:

%sh
tar -cvzf AA_02.tar.gz /FileStore/tables/my_cloud_dir tar1.txt tar2.txt tar3.txt 

Neither does this:

%sh
tar -cvzf AA_03.tar.gz /FileStore/tables/my_cloud_dir 

2. Does this mean we need some extra installation for .gz files?