105 Basic Linux CLI Commands

1. **`ls`**: List files and directories.
   - Example: `ls -l` for detailed listing.

2. **`cd`**: Change directory.
   - Example: `cd Documents` to navigate.

3. **`pwd`**: Print current working directory.

4. **`mkdir`**: Create a new directory.
   - Example: `mkdir NewDirectory`.

5. **`touch`**: Create an empty file.
   - Example: `touch newfile.txt`.

6. **`cp`**: Copy files or directories.
   - Example: `cp file.txt /path/to/destination`.

7. **`mv`**: Move or rename files/directories.
   - Example: `mv oldfile.txt newfile.txt`.

8. **`rm`**: Remove/delete files or directories.
   - Caution: `rm file.txt`.

9. **`cat`**: Display file contents.
   - Example: `cat file.txt`.

10. **`nano` or `vim`**: Text editors for file editing.
    - Example: `nano filename`.

11. **`grep`**: Search for a pattern in files.
    - Example: `grep pattern file.txt`.

12. **`chmod`**: Change file permissions.
    - Example: `chmod 755 file.txt`.

13. **`chown`**: Change file ownership.
    - Example: `chown user:group file.txt`.

14. **`alias`**: Create a shortcut for a command.
    - Example: `alias ll='ls -l'`.

15. **`find`**: Search for files.
    - Example: `find /path -name filename`.

16. **`awk`**: Process and analyze text.
    - Example: `awk '{print $1}' file.txt`.

17. **`sed`**: Text stream editor.
    - Example: `sed 's/old/new/g' file.txt`.

18. **`history`**: View command history.
    - Example: `history | tail -n 10`.

19. **`shutdown`**: Power off or restart.
    - Example: `shutdown now`.

20. **`df`**: Display disk space usage.
    - Example: `df -h`.

21. **`du`**: Display file and directory space usage.
    - Example: `du -sh directory`.

22. **`tar`**: Create or extract compressed archives.
    - Example: `tar -cvf archive.tar files`.

23. **`wget`**: Download files from the internet.
    - Example: `wget url`.

24. **`scp`**: Securely copy files between systems.
    - Example: `scp file.txt user@remote:/path`.

25. **`head`**: Display the first lines of a file.
    - Example: `head -n 5 file.txt`.

26. **`tail`**: Display the last lines of a file.
    - Example: `tail -n 10 file.txt`.

27. **`nmcli`**: Command-line client for NetworkManager.
    - Example: `nmcli device show`.

28. **`ps`**: Display information about running processes.
    - Example: `ps aux`.

29. **`kill`**: Terminate a process.
    - Example: `kill process_id`.

30. **`uname`**: Display system information.
    - Example: `uname -a`.

31. **`date`**: Display the current date and time.
    - Example: `date`.

32. **`echo`**: Display a message.
    - Example: `echo "Hello, World!"`.

33. **`whoami`**: Display the current username.
    - Example: `whoami`.

34. **`top`**: Display real-time system statistics.
    - Press `q` to exit.

35. **`ifconfig` or `ip`**: Display network interface information.
    - Example: `ifconfig` or `ip address show`.
```

And here are the remaining commands:

```markdown
36. **`ping`**: Check network connectivity to a host.
    - Example: `ping google.com`.

37. **`nc`**: Netcat for network communication.
    - Example: `nc -zv host 80` checks connectivity on a specific port.

38. **`df`**: Display disk space usage.
    - Example: `df -h`.

39. **`du`**: Display file and directory space usage.
    - Example: `du -sh directory`.

40. **`free`**: Display system memory usage.
    - Example: `free -h`.

41. **`ps`**: Display information about running processes.
    - Example: `ps aux`.

42. **`kill`**: Terminate a process.
    - Example: `kill process_id`.

43. **`uname`**: Display system information.
    - Example: `uname -a`.

44. **`date`**: Display the current date and time.
    - Example: `date`.

45. **`echo`**: Display a message.
    - Example: `echo "Hello, World!"`.

46. **`whoami`**: Display the current username.
    - Example: `whoami`.

47. **`top`**: Display real-time system statistics.
    - Press `q` to exit.

48. **`ifconfig` or `ip`**: Display network interface information.
    - Example: `ifconfig` or `ip address show`.

49. **`ping`**: Check network connectivity to a host.
    - Example: `ping google.com`.

50. **`nc`**: Netcat for network communication.
    - Example: `nc -zv host 80` checks connectivity on a specific port.

51. **`uptime`**: Display how long the system has been running.
    - Example: `uptime`.

52. **`groups`**: Show the groups a user belongs to.
    - Example: `groups username`.

53. **`passwd`**: Change user password.
    - Example: `passwd`.

54. **`ps`**: Display information about running processes.
    - Example: `ps aux`.

55. **`kill`**: Terminate a process.
    - Example: `kill process_id`.

56. **`uname`**: Display system information.
    - Example: `uname -a`.

57. **`date`**: Display the current date and time.
    - Example: `date`.

58. **`echo`**: Display a message.
    - Example: `echo "Hello, World!"`.

59. **`whoami`**: Display the current username.
    - Example: `whoami`.

60. **`top`**: Display real-time system statistics.
    - Press `q` to exit.

61. **`ifconfig` or `ip`**: Display network interface information.
    - Example: `ifconfig` or `ip address show`.

62. **`ping`**: Check network connectivity to a host.
    - Example: `ping google.com`.

63. **`nc`**: Netcat for network communication.
    - Example: `nc -zv host 80` checks connectivity on a specific port.

64. **`df`**: Display disk space usage.
    - Example: `df -h`.

65. **`du`**: Display file and directory space usage.
    - Example: `du -sh directory`.

66. **`free`**: Display system memory usage.
    - Example: `free -h`.

67. **`ps`**: Display information about running processes.
    - Example: `ps aux`.

68. **`kill`**: Terminate a process.
    - Example: `kill process_id`.

69. **`uname`**: Display system information.
    - Example: `uname -a`.

70. **`date`**: Display the current date and time.
    - Example: `date`.

71. **`echo`**: Display a message.
    - Example: `echo "Hello, World!"`.

72. **`whoami`**: Display the current username.
    - Example: `whoami`.

73. **`top`**: Display real-time system statistics.
    - Press `q` to exit.

74. **`ifconfig` or `ip`**: Display network interface information.
    - Example: `ifconfig` or `ip address show`.

75. **`ping`**: Check network connectivity to a host.
    - Example: `ping google.com`.

76. **`nc`**: Netcat for network communication.
    - Example: `nc -zv host 80` checks connectivity on a specific port.

77. **`df`**: Display disk space usage.
    - Example: `df -h`.

78. **`du`**: Display file and directory space usage.
    - Example: `du -sh directory`.

79. **`free`**: Display system memory usage.
    - Example: `free -h`.

80. **`ps`**: Display information about running processes.
    - Example: `ps aux`.

81. **`kill`**: Terminate a process.
    - Example: `kill process_id`.

82. **`uname`**: Display system information.
    - Example: `uname -a`.

83. **`date`**: Display the current date and time.
    - Example: `date`.

84. **`echo`**: Display a message.
    - Example: `echo "Hello, World!"`.

85. **`whoami`**: Display the current username.
    - Example: `whoami`.

86. **`top`**: Display real-time system statistics.
    - Press `q` to exit.

87. **`ifconfig` or `ip`**: Display network interface information.
    - Example: `ifconfig` or `ip address show`.

88. **`ping`**: Check network connectivity to a host.
    - Example: `ping google.com`.

89. **`nc`**: Netcat for network communication.
    - Example: `nc -zv host 80` checks connectivity on a specific port.

90. **`uptime`**: Display how long the system has been running.
    - Example: `uptime`.

91. **`groups`**: Show the groups a user belongs to.
    - Example: `groups username`.

92. **`passwd`**: Change user password.
    - Example: `passwd`.

93. **`ps`**: Display information about running processes.
    - Example: `ps aux`.

94. **`kill`**: Terminate a process.
    - Example: `kill process_id`.

95. **`uname`**: Display system information.
    - Example: `uname -a`.

96. **`date`**: Display the current date and time.
    - Example: `date`.

97. **`echo`**: Display a message.
    - Example: `echo "Hello, World!"`.

98. **`whoami`**: Display the current username.
    - Example: `whoami`.

99. **`top`**: Display real-time system statistics.
    - Press `q` to exit.

100. **`ifconfig` or `ip`**: Display network interface information.
     - Example: `ifconfig` or `ip address show`.

101. **`ping`**: Check network connectivity to a host.
     - Example: `ping google.com`.

102. **`nc`**: Netcat for network communication.
     - Example: `nc -zv host 80` checks connectivity on a specific port.

103. **`df`**: Display disk space usage.
     - Example: `df -h`.

104. **`du`**: Display file and directory space usage.
     - Example: `du -sh directory`.

105. **`free`**: Display system memory usage.
     - Example: `free -h`.