ps (list processes) in Linux CLI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the command to list all running processes.

Linux CLI

ps [1]

Drag options to blanks, or click blank then click option'

A-l

B-x

C-e

D-u

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-x' only shows processes without controlling terminals.

Using '-l' shows a long format but not all processes.

Using '-u' filters by user, not all processes.

The option '-e' shows all processes running on the system.

2fill in blank

medium

Complete the command to list processes with full details.

Linux CLI

ps [1]

Drag options to blanks, or click blank then click option'

A-e

B-ef

C-l

D-u

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-e' alone shows all processes but less detail.

Using '-l' shows long format but not full details.

Using '-u' filters by user.

The '-ef' option shows all processes with full-format listing.

3fill in blank

hard

Fix the error in the command to list processes by a specific user 'alice'.

Linux CLI

ps [1] alice

Drag options to blanks, or click blank then click option'

A-u

B-U

C-p

D-x

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-U' filters by user ID, not username.

Using '-p' filters by process ID.

Using '-x' shows processes without controlling terminals.

The '-u' option lists processes for the specified user by name.

4fill in blank

hard

Fill both blanks to list processes with PID and command name only.

Linux CLI

ps -eo [1],[2]

Drag options to blanks, or click blank then click option'

Apid

Bcmd

Cuser

Dtime

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'user' or 'time' shows extra columns not asked for.

Mixing up the order of columns.

The '-eo pid,cmd' option lists only the process ID and command name.

5fill in blank

hard

Fill both blanks to list processes sorted by memory usage in descending order.

Linux CLI

ps aux --sort=[1][2]

Drag options to blanks, or click blank then click option'

A%mem

Brss

C-

D+

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'rss' sorts by resident memory size, not percentage memory usage.

Using '+' sorts ascending, not descending.

Missing the minus sign causes wrong sort order.

The option '--sort=-%mem' sorts processes by memory usage descending.