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topcommand didn't actually get the memory for a specific pid. I mean, it was, but then yourgrep/awkwere only showing the system general memory usage, not the pid's memory usage. I'll add to my answer next week, but for now know you can useps(for instace:ps -o rss -p <pid>) orpidstat(for instance:pidstar -r -p <pid>). Read their respective man pages for more information. You can also find memory stats in/proc/[pid]/status.topcommand you want to show, since this is a different question. Again, just remember that your current full command shows the system's general usage and not the process', so instead of using the command withgrep/awk, just show the fulltopoutput and say which field you want to easily get for the process.