Linux Commands Tutorial

Welcome to the Linux Commands Tutorial! Below you will find a list of essential Linux commands that are commonly used in daily operations. These commands can help you navigate, manage files, and perform various tasks on your Linux system.

Navigation

cd: Change directory.
- cd /: Go to the root directory.
- cd ~: Go to your home directory.
pwd: Print working directory.
ls: List files and directories.
- ls -l: Detailed list of files and directories.
- ls -a: List all files, including hidden ones.
mkdir: Make directory.
- mkdir my_directory: Create a new directory named "my_directory".
rmdir: Remove directory.
- rmdir my_directory: Remove the directory named "my_directory".
cd ..: Go up one directory level.

File Management

cp: Copy files and directories.
- cp file.txt /path/to/destination/: Copy "file.txt" to the specified destination.
mv: Move or rename files and directories.
- mv file.txt /path/to/destination/: Move "file.txt" to the specified destination.
rm: Remove files and directories.
- rm file.txt: Remove the file named "file.txt".
cat: Concatenate files and display them on the screen.
- cat file.txt: Display the contents of "file.txt".
less: View files in a pager.
- less file.txt: View "file.txt" in a pager.

System Information

hostname: Display the name of the current host.
uname: Display system information.
- uname -a: Display detailed system information.
date: Display or set the system date and time.
- date: Display the current date and time.
- date "new date": Set the system date and time to "new date".

System Management

top: Display the running processes with the highest CPU usage.
free: Display the amount of free and used memory and swap space.
df: Display the amount of disk space used and available on Linux file systems.
kill: Terminate a process.
- kill -9 <PID>: Forcefully terminate the process with the specified Process ID (PID).

For more information on Linux commands, you can visit our Linux Commands Reference.