Login using Social Account
Login using your credentials
When you run ps aux, how many processes do you see?
ps aux
Many. Since many other users are running the processes. Also, the system is running many processes in background.
Only two because I am not allowed to see the process listing of other users.
Command is invalid because it should be ps -aux.
Zero because I am not running any process and I am not allowed to see the information about other users as I am not root - the administrator.
Taking you to the next exercise in seconds...
Stay here Next Exercise
Want to create exercises like this yourself? Click here.
Go Back to the Course
1 Linux Introduction
2 Linux is closer to?
3 Linux Overview
4 Linux Operating System
5 Linux Files & Processes
6 Number of processes
7 File Name on restarting
8 Process on Computer Restart
9 Process id
10 Linux Console
11 The Directory Structure
12 Relative and Absolute path
13 Relative File Names
14 Absolute and Relative Paths - 1
15 Absolute and Relative Paths - 2
16 Absolute and Relative Paths - 3
17 User manual of commands
18 Create Directory
19 Create Directory - nested
20 Create a directory when parent directory already exists
21 Delete a file
22 Create File
23 Create Text File Using Nano
24 Copy File
25 Use cases of cp command
26 Copy a file into another directory
27 Copy files of a particular extension
28 Copy a directory into another directory
29 Copy a directory along with files
30 Move Files & Directories
31 Use cases of mv command
32 Move a file to folder
33 Delete Files & Directories
34 Remove a directory
35 Seeing Inside File - cat, tail, head
36 Commands
37 Commands to print text of a file
38 Commands to print first few lines
39 Use find command
40 Searching files by name
41 Use find command to find files with .txt extension
42 Searching files by size
43 Extra functions of find command
44 Extra functions of find command exercise
45 Use grep command
46 Which line did you get in the result?
47 Use wc command
48 Check number of characters in a file
49 Permissions - Overview
50 List of files
51 Permissions: Assignment - Check owner and group of a file
52 Permissions - Using chmod To Change
53 Permissions: Assignment - Owner can change, others can only read
54 Permission: Assignment - Everyone can execute
55 Permission: Assignment - Nobody other than owner can read the file
56 Permission: Assignment - Only Group Members can read
57 Permissions - Numeric
58 Permissions: Numeric representation
59 Permissions - Advanced
60 Who can delete a file
61 Process
62 Which one is a process?
63 Find information about processes
64 BSD syntax of commands
65 Check ps command
66 Check all processes
67 Which command to use to monitor process?
68 Background Processes
69 Send a process in background
70 Kill a background process
71 Interacting with processes
72 More - Interacting with processes
73 Process hierarchy
74 Command to kill a process
75 Writing first shell script
76 Every Program Returns a Value
77 Value of echo $
78 Networking: Sockets and ports
79 Connecting to localhost
80 Files & Directories: linking
81 Hard link and soft link
82 Files & Directories - Symbolic links
83 Files & Directories - More About Symbolic Link
84 Hard link and soft link exercise
85 Readlink Command
86 Hard Link to a Directory
87 Chaining Unix Commands
88 Redirecting the output of a program
89 Pipes - Introduction
90 Pipes Exercise
91 Filters
92 Word Count Exercise
93 Improved Word Count Using Unix Commands
94 Word Count Exercise
95 Shell script for WordCount
96 Permissions of Processes
97 Read or Modify /etc/shadow
98 Permissions of Processes - setuid
99 Permissions - setting setuid
100 permissions of passwd file
101 Special System commands
102 Command to reboot the machine
103 Where is my program?
104 What is Hadoop command
105 Environment variables
106 Find value of an environment variable
107 Setting Environment variables
Loading comments...