Is there a Linux command to monitor read and writes over a period of time? with what files were accessed and how much data was written.
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iotop maybe?
sysdig can monitor and display file IO usage.
See this page for some examples: https://github.com/draios/sysdig/wiki/Sysdig Examples#disk-io
For read/write ops or disk usage over time, I would usually use a monitoring system like Prometheus and Grafana.
When you start talking about what specific files are accessed and when, that’s usually up to an intrusion detection system (or IDS). I don’t have good recommendations for that unfortunately.