Schedule Job to patch server and running scripts

Hello everyone

I am working on a migration from Satellite 5.8 to Satellite 6.8 and I have two doubts on how can I schedule two different (but, in a way, similar) jobs via Hammer CLI.

First case:
I have a script to read a CSV file the servers to patch (we patch servers every day) with the following format:
hostname;host_id;hour;patchdate

For example:
host1;1234567890;01:30;15-03-2021
host2...
host3...
[...]

And I need to create a job on every server, to execute a script that is locally on every client server at the hour and date provided on the file.
I plan to do this using "hammer job-invocation create" is that possible?
I mean that, on every server there is already a SCRIPT and I need to create a job to "say" to every server to execute that script at hour/date provided.
So I plan to do a "while" loop to read the file and do the "hammer job-invocation create". Is this the right thing to do? Could you help me how can I use the hammer command in this case? with the proper parameters...

Second case:
I also have a script (this time is NOT on every client, just in Satellite server) and I need to send/execute this script on a servers listed in csv file. Is there an easy/simple way to do this? Is it possible to use any hammer command to perform this action? Any tips?

Thanks in advance!