I want to monitor CPU usage, disk read/write usage for a particular process, say ./myprocess.

To monitor CPU top command seems to be a nice option and for read and write iotop seems to be a handy one.

For example to monitor read/write for every second i use the command iotop -tbod1 | grep "myprocess".

My difficulty is I just want only three variables to store, namely read/sec, write/sec, cpu usage/sec. Could you help me with a script that combines the outputs the above said three variables from top and iotop to be stored into a log file?

Thanks!