Processes in Linux

To take a peek of process or to stop them is the same as what we do in windows where we right click on the task bar, click to open up the task manager.
The window will display all the processes currently running in windows. To stop or kill the processes, simply select one of them and click on the 'End Task' button.

So how do i do in Unix? When i display the processes in unix, the terminal will display these information on the window:
PID = process id
TTY = terminal device where process is running
STAT = Process stats
TIME = Amount of CPU time used
COMMAND = Command of the process

To view the detailed report of the process:
# ps ax or # ps u or # ps -ef

To kill a process, simply issue the above command, look for the PID number and issue this command with the number:
# kill <ENTER THE PID_NUMBER>

To freeze or stop a process
# kill -STOP <ENTER THE PID_NUMBER>

To restart a process again
# kill -CONT <ENTER THE PID_NUMBER>