public/subjects/0-shell/job-control/audit.md

General

Was the project written in a compiled programming language?

Functional

Try to run the command "ls -lRr / 2>1 >/dev/null &" then run the command "jobs".

[1]+  Running                 ls -lRr / 2>1 >/dev/null &

Can you confirm that the program displayed a list with the status of all jobs like in the example above?

Try to run the command "jobs -l".

[1]+ 13612 Running                 ls -lRr / 2>1 >/dev/null &

Can you confirm that the program added the process ID to the normal information given in the command "jobs" like in the example above?

Try to run the command "jobs -p".

13612

Can you confirm that the program only displays the process ID like in the example above?

Try to run the command "sleep 50000 &" then run "python &" and press enter without any input in the last command.

[1]   Running                 ls -lRr / 2>1 >/dev/null &
[2]-  Running                 sleep 50000 &
[3]+  Stopped                 python

Run the command "jobs". Can you confirm that the program displays the list with the status of all jobs and that one of them is "Stopped" like the example above?

Try to run the command "jobs -r".

[1]   Running                 ls -lRr / 2>1 >/dev/null &
[2]-  Running                 sleep 50000 &

Can you confirm that the program only displays the list with running jobs like in the example above?

Try to run the command "jobs -s".

[3]+  Stopped                 python

Can you confirm that the program only displays the list with stopped jobs like in the example above?

Try to run the command "kill 7764"(the process ID must be yours this is just an example).

[2]-  Terminated              sleep 50000

Can you confirm that the program killed and displayed the process with the given id like in the example above?

Try to run the command "kill %1".

[1]   Terminated              ls -lRr / 2>1 >/dev/null

Can you confirm that the program killed and displayed the first process like in the example above?

Close the program and run it again. Try to run the commands "ls -lRr / 2>1 >/dev/null &", "sleep 50000 &" and then run "fg".

sleep 50000

Can you confirm that the program brings the background job to the foreground like in the example above?

Try to run the command "fg" then stop the process with the "Ctrl + Z".

sleep 50000
^Z
[2]+  Stopped                 sleep 50000

Can you confirm that the program brings the background job to the foreground and after you press "Ctrl + Z" the process stops like in the example above?

Try to run the command "bg".

[2]+ sleep 50000 &

Run "jobs". Can you confirm that the program started the process in the background like in the example above?