In Bash, we can use echo or printf command to display a text in the console or terminal. Each commands have their own behaviors.

We are frequently perform different operations on file systems. One of the common operations is file searching. The task is so simple but it consuming more time when our system has a large number of files. However, we can make it easy by excluding some directories from the search path.

NGINX is a lightweight fast and open source web-server to serve for massive applications or static websites. It provides high-performance with excellent speed and security. It is the perfect choice for streaming services with massive traffic.

Here we are going to learn about to count all the lines of code in a specific directory and its subdirectories. find and wc -l commands return the number of line of codes in the directory.

Using chmod command we can change the permissions of files and directories. Sometimes, we need to change the permissions of a directory and all its subfolders and files. In these cases, we use -R option to recursively apply permission to all subfolders and files:

Escape sequences (some defined set of characters) with ANSI color codes are used to change the color of the output on a Linux Terminal. The string preceded with the escape sequence to be colored in Linux Terminal.

The echo command is used to display a line of text on the terminal. We can also use the echo command to write text to a file by providing the string after the echo command and redirecting to the file.