Linux Shell Scripting Cookbook - Third Edition

How to do it...

The echo command is the simplest command for printing in the terminal.

By default, echo adds a newline at the end of every echo invocation:

$ echo "Welcome to Bash"
Welcome to Bash

Simply, using double-quoted text with the echo command prints the text in the terminal. Similarly, text without double quotes also gives the same output:

$ echo Welcome to Bash
Welcome to Bash

Another way to do the same task is with single quotes:

$ echo 'text in quotes'

These methods appear similar, but each has a specific purpose and side effects. Double quotes allow the shell to interpret special characters within the string. Single quotes disable this interpretation.

Consider the following command:

$ echo "cannot include exclamation - ...