"Over the decades that I've been using Linux, I've seen distributions and apps come and go. That should be no surprise to anyone. However, I've also experienced commands come and go, which might seem a bit strange at first. However, when you understand why some commands get deprecated, it makes sense. Also: My 5 favorite distros of Linux past - and why I'm still thinking about them Commands are deprecated for the following reasons: Security vulnerabilities A lack of ongoing maintenance The availability of newer, more feature-rich alternatives"
"During my earlier years of using Linux, ifconfig was an absolute must. With this command, you could not only gather information about network connections (such as network device name, IP address, gateway, and more), but you could also configure networking. Also: I'm a command-line pro and this is the best terminal app I've ever used, thanks to AI The reason ifconfig went away was that the net-tools app was deprecated. Because ifconfig was a part of net-tools, it went bye-bye as well."
"Some Linux commands are no longer in use. These commands may still be available, but it's best to avoid them. Each of these commands has a newer replacement. Sure, you might have used command X for 20 years, but command Y does the same thing, does it more efficiently, and is more secure. There are always reasons."
Linux distributions, apps, and command-line utilities change over time, and some legacy commands become deprecated. Commands are deprecated because of security vulnerabilities, lack of maintenance, and the availability of newer, more feature-rich alternatives. Deprecated commands may still exist on distributions but are not recommended for ongoing use. Classic networking tools like ifconfig and iwconfig have been superseded by ip and iw; ifconfig was removed when net-tools was deprecated. Replacements provide equivalent or improved functionality with better security and active development. Users should prefer maintained modern alternatives to avoid stability and security risks.
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