How to Fix “Command Not Found” Errors in Mac Command Line

Advanced Mac users that utilize the command line may occasionally encounter a “command not found” error message when attempting to run something in the command line. The “command not found” error in the Terminal can surface for several reasons in the command line of MacOS and Mac OS X, as we’ll discuss here, and of course we’ll offer solutions to these issues.









If you’re traveling through areas of weak cellular signals and generally poor reception, you can save a significant amount of iPhone battery life simply by toggling the AirPlane Mode feature on. That may sound weird, but it really works, with the idea being that when an iPhone has an intermittent cell signal, the cellular modem continuously searches for another available cell tower, which happens to use a lot of battery power. Thus, the solution is to simply stop the iPhone from looking for a cell signal if you’re not going to have one anyway.
