Passing variables to system commands in Python can be very useful, especially when dealing with shell commands. In this tutorial, we’ll look at how to pass variables to the os.system() function in Python.

Steps:

Step 1: Import the os module

Before using the os.system() function, we need to import the os module. Here’s the code:

Step 2: Define your variable

Next, define your variable. For example, let’s define a variable named name with the value “John”:

Step 3: Use the variable in the os.system() function

Now, we can use the variable name in the os.system() function. Here’s an example:

This will output “Hello John” in the terminal.

Step 4: Use curly braces to pass variables

Another way to pass variables to the os.system() function is to use curly braces {}. Here’s an example:

This will also output “Hello John” in the terminal.

Step 5: Use f-strings to pass variables (Python 3.6+)

In Python 3.6 and above, you can also use f-strings to pass variables to the os.system() function. Here’s an example:

This will also output “Hello John” in the terminal.

Conclusion

In this tutorial, we looked at how to pass variables to the os.system() function in Python.

We learned how to import the os module, define a variable, and use the variable in the os.system() function using three different methods. Remember to always sanitize user input to prevent security vulnerabilities.

Here’s the full code: