Recursive Unzip From Linux Shell?

I have a file named 'mainZip.zip''

This file ('mainZip.zip'') contains two file开发者_如何学运维s:

'textFile.txt'

'secondaryZip.zip'

'secondaryZip.zip' file contains two files as well:

'apple.bin'

'cat.jpg'

Can you advise how to unzip 'cat.jpg' in one bash command? can this be done using 'unzip' only?

This works:

unzip mainZip.zip && unzip secondaryZip.zip

Here is someone's answer to this exact question, using a custom script. It appears that Unix does not have a built-in recursive unzip option