Top 50 Linux Commands for Administrator?

Maruti Kr. — Wed, 17 Jan 2024 10:56:27 +0000

Linux commands cover a variety of tasks, from system monitoring to file management and user administration. Here’s a list of 50 Linux commands that are commonly used by administrators.

S.No.	Linux Command	Use of these command
1.	pwd	Print current working directory.
2.	ls	List directory contents.
3.	cd	Change directory.
4.	cp	Copy files or directories.
5.	mv	Move or rename files or directories.
6.	rm	Remove/delete files or directories.
7.	mkdir	Create a new directory.
8.	rmdir	Remove an empty directory.
9.	touch	Create an empty file or update the access/modification time.
10.	cat	Display the contents of a file.
11.	less	View file contents one screen at a time.
12.	grep	Search for a pattern in files.
13.	find	Search for files and directories.
14.	chmod	Change file permissions.
15.	chown	Change file owner and group.
16.	ps	Display information about running processes.
17.	top	Display and update sorted information about system processes.
18.	kill	Terminate a process.
19.	killall	Kill processes by name.
20.	df	Display disk space usage.
21.	du	Show disk usage of files and directories.
22.	free	Display amount of free and used memory in the system.
23.	uname	Print system information.
24.	ifconfig	Configure network interfaces.
25.	ping	Test network connectivity.
26.	traceroute	Trace the route that packets take to reach a network host.
27.	netstat	Display network connections, routing tables, and more.
28.	route	Show and manipulate the IP routing table.
29.	iwconfig	Configure wireless network interfaces.
30.	hostname	Show or set the system’s host name.
31.	date	Display or set the system date and time.
32.	cal	Display a calendar.
33.	tar	Archive files.
34.	gzip	Compress or decompress files.
35.	wget	Download files from the internet.
36.	ssh	Connect to a remote server securely.
37.	scp	Copy files between machines over SSH.
38.	rsync	Synchronize files and directories.
39.	passwd	Change user password.
40.	useradd	Create a new user.
41.	userdel	Delete a user account.
42.	groupadd	Create a new group.
43.	groupdel	Delete a group.
44.	visudo	Edit the sudoers file safely.
45.	service	Control system services.
46.	systemctl	Control the systemd system and service manager.
47.	journalctl	Query and display messages from the journal.
48.	chkconfig	Update and query runlevel information for system services.
49.	lsof	List open files and processes that opened them.
50.	history	Display command history.

These commands cover a wide range of tasks and are essential for Linux administrators. Always make sure you understand the commands and their implications before using them, especially those that involve system changes.

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Top 50 Linux Commands for Administrator?