create script and cron job to output b virtual <vipnamehere> show all to output txt file

I want to monitor vip throughput for specific vips on several different F5 devices at busy times throughout the day. I understand F5 runs on linux and cron is available. I'd like to create an executable script that I can schedule to run at the busy times to capture: b virtual show all to an output file each time.

I will keep googling and testing, but I thought I'd post this here and see what comes up.

Thanks, f5 newbie