Linux Commands

ls

list directory contents

pwd

Print Working Directory/displays current working directory path

mv

move a file or directory (rename)

cp

copy a file or directory

rm

remove files or directory

chmod

change permission modifiers

chown

Change file owner and group

su/sudo

* Become super user
* Execute command as super user

apt-get

Search for and install software packages (Debian/Ubuntu)

yum

the primary tool for getting, installing, deleting, querying, and otherwise managing Red Hat Enterprise Linux RPM software packages from official Red Hat software repositories, as well as other third-party repositories.

ip

tool for configuring network interfaces that any Linux system administrator should know. It is used to bring interfaces up or down, assign and remove addresses and routes, manage ARP cache, and much more.

df

used to display the free disc space of a specific file system.

grep

Search file(s) for lines that match a given pattern

ps

viewing information related with the processes on a system. Used to list the currently running processes and their PIDs along with some other information

man

a built-in manual for using Linux commands. It allows users to view the reference manuals of a command or utility run in the terminal.

top

command shows a real-time view of running processes in Linux and displays kernel-managed tasks. The command also provides a system information summary that shows resource utilization, including CPU and memory usage.

find

used to search and locate the list of files and directories based on conditions you specify for files that match the arguments. The command can be used in a variety of conditions such as locating files by permissions, users, groups, file types, date, size, and other possible criteria.

dig

used to gather DNS information. It stands for Domain Information Groper, and it collects data about Domain Name Servers. The dig command is helpful for troubleshooting DNS problems, but is also used to display DNS information.

cat

allows us to create single or multiple files, view content of a file, chain files and redirect output in terminal or files.

nano

a user-friendly, free and open-source text editor that usually comes pre-installed in modern Linux systems.

samba

______ is a suite of applications that implements the Server Message Block (SMB) protocol.