When you try to execute a command on the Terminal and you get the error code 127, then the reason for the error is that the command is not found.
Example:
bash: 127: command not found
Reason for 127 Error:
- The command does not exist.
- You have a typo in the command name?
- The command exists but is not available in PATH.
- The command Package/Binary is not installed on your Linux/Ubuntu/Mac System.
- You do not have permission to execute the command.
Fix: 127 Error:
- Make sure the command exists, you can make use of which command to verify,
which python3
- Make sure there is no typo in the command name.
- If the command does not exist in the PATH, do add it.
- If the command Package/Binary is not installed, get it installed.
- Make sure you do have permission to execute the command.

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