Advanced Mac users who use the command line occasionally run across the error message “command not found” when trying to execute anything.
We’ll explore some of the causes of the “command not found” problem in the Terminal that can occur in the macOS and Mac OS X command line, and we’ll also provide remedies.
Why You See “Command Not Found” Error Messages at The Command Line
The following are the four most frequent causes of the “command not found” warning on the Mac command line:
You typed the command syntax wrong because the command you are trying to run is not installed.
the system directory was removed or altered, which is worse than the command being erased.
The most frequent cause of a “command not found” error is that the user’s $PATH is incomplete or that $PATH has been incorrectly set, reset, or erased.
Fortunately, you can fix every one of these problems and restore the common to normal operation. If you just input the syntax incorrectly, fixing it is as simple as typing it right! Beyond that, we’ll start with the most frequent cause, which is that the user’s $PATH was incorrectly set or reset in some other way.
Fixing “Command Not Found” Terminal Messages in Mac OS with $PATH Setting
The $PATH of the user went astray, or the path where the command is located is not set, which is the most probable cause of Mac users suddenly seeing the command not found message in the command line.
If you want to check the $PATH, type “echo $PATH,” but if not, just use the following commands to set the default path that Mac OS uses by default:
“/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin” is the export path.
Restarting your command after pressing return should make it function.
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By the way, although we’re concentrating on Mac OS here, the same concept also holds true for other unix and linux variants.
Please take note that you may always include the new $PATH at the command line to designate where to search if necessary if the desired command you’re trying to use is located in a nonstandard directory or in another place (/usr/local/sbin/, for example).
Previously, performing the straightforward commands line ls and cd would result in the “command not found” message:
Once those commands have successfully completed as expected:
What causes this to occur? It can happen for a variety of reasons, including executing an incomplete or inaccurate export $PATH command or failing to properly modify environment variables.
For the modification to take effect, the command line shell may need to be refreshed. Add the export $PATH commands to the users. bash profile,.profile, or pertinent shell profile if using a different shell in the Terminal app if you restart the programme and still receive the “command not found” issue.
“Command Not Found” Because the Command Isn’t Installed? Use Home Brew
The simplest solution is to install and use Homebrew on the Mac to gain access to those command line utilities if the command simply isn’t installed on the Mac, for common examples like wget, htop, or the many other useful unix commands available as Homebrew packages that aren’t otherwise preinstalled in Mac OS.
If you’re going to spend time in the Terminal, you should probably have homebrew because it’s an excellent tool.
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“Command Not Found” Because a System Directory Is Missing? Restore the Missing System Files
Mac users occasionally get into situations where they unintentionally or accidentally destroy system files from Mac OS. This typically occurs when someone is playing with rm/srm and a wildcard, or perhaps they got excessively enthusiastic when using the trash can while signing in as root.
In any case, you may learn here about how to get back lost or deleted system data on Mac OS and Mac OS X. This generally entails restoring from a backup or reinstalling the operating system software.
Do you have any more knowledge on the “command not found” problem message that may appear in Mac OS Terminal? Maybe you can come up with a better answer than what was suggested above. Tell us in the comments section below.
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