Introduction to Linux

Basic Commands

These are the most basic commands that you should know as a Linux System Administrator.

Command Syntax

Commands that utilize the Bash shell follow this common syntax.

command [-options] [arguments]

Commands

cat - Used to concatenate files, and print to stdout.

Syntax: cat [-options] <path/file>

Example: cat readme.txt

cp - Used to copy files and directories.

Syntax: cp [-options] <source> <destination>

Example: cp -R olddirectory newdirectory

echo - Used to print text to stdout.

Syntax: echo [-option] <string>

Example: echo -e This my first line \n This is my second line \n This is my third line

ls -

mkdir -

mv -

pwd -

touch -