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This has helped me numerous times trying to find either log files or tmp files that get created after execution of a command. And really eye opening as to how active a given process really is. Play around with -anewer, -cnewer & -newerXY
There is 1 alternative - vote for the best!
Traces the system calls of a program. See http://linuxhelp.blogspot.com/2006/05/strace-very-powerful-troubleshooting.html for more information.
If you can do better, submit your command here.
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Great command!
Another way could also use strace. strace records all system calls made, and you can even attach it to running processes:
strace -o straceoutput.txt $COMMANDalso use -p $PID to attach to an already-running program. Also, use ltrace to trace library calls.
Prefer to use lsof -p, see command:
diff
diff <(lsof -p 1234) <(sleep 10; lsof -p 1234)