As a best-selling author, I invite you to explore my books on Amazon . Don't forget to follow me on Medium and show your support. Thank you! Your support means the world! I remember the first time I had to update a configuration file on thirty servers by hand. I logged into each one, opened the file in vim, changed a single IP address, saved, and restarted the service. It took three hours. Then I did it again the next week. That’s when I decided there had to be a better way. Python gave me that way. Over the years I collected eight techniques that turned my manual drudgery into automated scripts. If you are new to DevOps, these methods will save you time and prevent mistakes. I’ll explain each one slowly, with simple words and plenty of code you can copy and modify. Running commands on remote servers The first technique is about executing commands on many servers at once without opening SSH sessions yourself. I use the fabric library for this. It handles connections, runs commands, and collects output.…