Linux Commands

ls – The most frequently used command in Linux to list directories
pwd – Print working directory command in Linux
cd – Linux command to navigate through directories
mkdir – Command used to create directories in Linux
mv – Move or rename files in Linux
cp – Similar usage as mv but for copying files in Linux
rm – Delete files or directories
touch – Create blank/empty files
ln – Create symbolic links (shortcuts) to other files
clear – Clear the terminal display
cat – Display file contents on the terminal
echo – Print any text that follows the command
less – Linux command to display paged outputs in the terminal
man – Access manual pages for all Linux commands
uname – Linux command to get basic information about the OS
whoami – Get the active username
tar – Command to extract and compress files in linux
grep – Search for a string within an output
head – Return the specified number of lines from the top
tail – Return the specified number of lines from the bottom
diff – Find the difference between two files
cmp – Allows you to check if two files are identical
comm – Combines the functionality of diff and cmp
sort – Linux command to sort the content of a file while outputting
export – Export environment variables in Linux
zip – Zip files in Linux
unzip – Unzip files in Linux
ssh – Secure Shell command in Linux
service – Linux command to start and stop services
ps – Display active processes
kill and killall – Kill active processes by process ID or name
df – Display disk filesystem information
mount – Mount file systems in Linux
chmod – Command to change file permissions
chown – Command for granting ownership of files or folders
ifconfig – Display network interfaces and IP addresses
traceroute – Trace all the network hops to reach the destination
wget – Direct download files from the internet
ufw – Firewall command
iptables – Base firewall for all other firewall utilities to interface with
apt, pacman, yum, rpm – Package managers depending on the distribution
sudo – Command to escalate privileges in Linux
cal – View a command-line calendar
alias – Create custom shortcuts for your regularly used commands
dd – Majorly used for creating bootable USB sticks
whereis – Locate the binary, source, and manual pages for a command
whatis – Find what a command is used for
top – View active processes live with their system usage
useradd and usermod – Add a new user or change existing user data
passwd – Create or update passwords for existing users