Linux is a widely-used, open-source operating system that is based on the Unix operating system. It is known for its stability, security, and flexibility, and it is used on a wide range of devices, including servers, desktop computers, and embedded systems.
One of the strengths of Linux is its command-line interface, which allows users to perform a wide range of tasks using text-based commands. These commands are typed into the terminal, which is a text-based interface that allows users to enter commands and see the output.
To use Linux effectively, it is important to become familiar with a variety of basic commands that can be used to navigate the file system, manage files and directories, and perform other common tasks.
Basic Linux commands that can be helpful for beginners:
ls: This command lists the files and directories in the current directory.
cd: This command allows you to change directories. For example,
cd Documentswill change the current directory to the “Documents” directory.
pwd: This command shows the current working directory (i.e., the directory you are currently in).
mkdir: This command creates a new directory. For example,
mkdir mydirectorywill create a new directory called “mydirectory”.
rm: This command deletes a file. For example,
rm myfile.txtwill delete a file called “myfile.txt”.
rmdir: This command deletes an empty directory. For example,
rmdir mydirectorywill delete the empty directory called “mydirectory”.
mv: This command moves or renames a file. For example,
mv myfile.txt mydirectorywill move the file “myfile.txt” to the “mydirectory” directory, and
mv myfile.txt myfile2.txtwill rename the file “myfile.txt” to “myfile2.txt”.
cp: This command copies a file. For example,
cp myfile.txt mydirectorywill copy the file “myfile.txt” to the “mydirectory” directory.
Some additional Linux commands that can be useful for beginners:
cat: This command displays the contents of a file. For example,
cat myfile.txtwill show the contents of the file “myfile.txt” on the terminal.
echo: This command prints a message to the terminal. For example,
echo "Hello World"will print the message “Hello World” to the terminal.
grep: This command searches for a specific pattern in a file or multiple files. For example,
grep "ERROR" log.txtwill search the file “log.txt” for any lines that contain the word “ERROR”.
less: This command allows you to view the contents of a file one page at a time. For example,
less myfile.txtwill show the contents of the file “myfile.txt” one page at a time, and you can use the arrow keys to navigate.
find: This command searches for files or directories based on certain criteria. For example,
find . -name "*.txt"will find all files with the “.txt” extension in the current directory and its subdirectories.
tar: This command creates or extracts files from a tar archive. For example,
tar -czvf myfiles.tar.gz *.txtwill create a tar archive called “myfiles.tar.gz” that contains all the “.txt” files in the current directory.
uname: This command displays information about the current system, such as the kernel version and the machine architecture.
These are just a few examples, but there are many more Linux commands that you can learn as you continue to work with the operating system. It’s always a good idea to consult the manual pages (using the
man command) for more information on how to use a particular command.