unzip, gunzip are available
On Linux systems there is a command called unzip. If the format of the file is definitely zip then use that program to unzip the contents. As an alternative you may also be able to use either GNU tar or one of its derivative commands. In particular, I had the gunzip command in mind. Use apropos unzip to find documentation that relates to unzipping files, then try reading the documentation using the man command on unzip, gunzip, and whatever else pops up. It should take only a few minutes and it may help you to see what is out there so you can make the best choices.
As far as cron, there are similar documents available for cron, crontab, and so forth. You will most certainly want to learn them in order to understand the breadth of the capabilities that are available. There are commercial job management systems available too. But unless you want to spend money and have to learn yet another thing, learning about the Linux gzip family for extracting archive data and learning about cron and crontab, reading and then asking questions, that is the best way to go. You will understand things better and you will be confident supporting it.
Not all of the documentation is easily understandable to someone unfamiliar with it, but it is accurate, and it gives you solid information once you grasp how to use it. If you do some reading, that ought to help you out so you can ask more specific questions.
I hope that is useful. Nothing quite like digging in with reading and research. I would be glad to help you interpret that reading and research.