Bellevue University CIS 240

1
Bellevue UniversityCIS 240

• More on Processes

2
What is a Process?

• Executable code
• Data
• Open files
• Stack space

3
Viewing processes

• ps is used to view the status of processes
• ps gives you the following information
• Process ID
• Terminal ID of owner
• State
• Running Time
• Command name

4
Example

• ps
• PID TTY TIME CMD
• tty1 000000 bash
• 9982 tty1 000000 ps

5
Killing a process

• kill is used
• Must be root or process owner to kill it

6
Example

• ps
• PID TTY TIME CMD
• tty1 000000 bash
• tty1 000000 ps
• tty1 000000 vi
• kill 9983