How do I use variables with echo?

You can use variables with the echo command in Linux by referencing the variable with a dollar sign ($). Here’s how to do it:

Steps:

Declare a Variable:
```
my_variable="Hello LabEx"
```
Use echo to Display the Variable:
```
echo $my_variable
```

Example:

my_variable="Hello LabEx"
echo $my_variable

Output:

Hello LabEx

Notes:

If the variable name is followed by characters that could be part of a variable name, enclose it in curly braces:
```
echo ${my_variable}World  # Outputs: Hello LabExWorld
```

Using variables with echo is a great way to display dynamic content in your scripts. If you have more questions or need further examples, let me know!