Managing User Processes

nice : Run a program with modified scheduling priority
renice: Alter priority of running processes
top: Display Linux processes
While running:
K: Kills processes
Q: Quits processes
r: Change process priority
s : Change update rate
P : Sort by CPU usage
m: Sort by memory usage; can also show uptime, memory info, and load average
From the command line:
-d: Specifies delay between updates
-p : Lists up to 20 specific PIDs
-n : Display certain number of updates then quit
-b : Batch mode