🐧 Linux Debian Cheat Sheet

# Lists files and directories
ls

# Lists files with details
ls -l

# Changes directory
cd <directory_name>

# Creates a new directory
mkdir <directory_name>

# Removes a file
rm <file_name>

# Removes a directory and its contents recursively
rm -r <directory_name>

# Copies a file or directory
cp <source> <destination>

# Moves or renames a file or directory
mv <source> <destination>

# Displays system information
uname -a

# Shows disk space usage
df -h

# Shows memory usage
free -h

# Displays running processes
top

# Updates the package list
sudo apt update

# Upgrades installed packages to the latest versions
sudo apt upgrade

# Installs a package
sudo apt install <package_name>

# Removes a package
sudo apt remove <package_name>

# Removes unnecessary packages
sudo apt autoremove

# Switches to another user
su <username>

# Adds a new user
sudo adduser <username>

# Changes file permissions
chmod <permissions> <file_name>

# Changes file ownership
chown <user>:<group> <file_name>

# Displays the contents of a file
cat <file_name>

# Views a file with pagination
less <file_name>

# Edits a file using Nano editor
nano <file_name>

# Searches for a string in a file
grep <string> <file_name>

# Shows IP address information
ip a

# Pings a host to check connectivity
ping <host>

# Displays active network connections
netstat -tuln

# Downloads a file from a URL
wget <url>