That's correct. The terminal does NOT ever show the characters in your password as you type it, and no indication that you are typing anything (remains blank)
It's a security tactic, so just type in your password, and press enter. It will then continue with whatever command you are using.
Don't disable that setting. If you have an app that gives a security warning, just right click on it and choose "Open" and then click the open button that allows the app to run. You'll only get prompted once for a given app.I just bought a new iMac 21.5" retina 5k using OS X High Sierra 10.13.4 and am on a very sharp learning curve. My existing iMac (21.5" 3.06GHz late 2009) runs Yosemite 10.10.5 (once I eventually and painfully got rid of El Capitan). OS X 10.11 (and later) will not recognise non Apple apps, some of which are open source and have no commercial alternatives available.
I need to make the 'Security & Privacy/General/(Allow apps downloaded from: "Anywhere") option to appear in Preferences window.
In Utilities/Terminal I type "sudo spctl --master-disable and press 'Enter' key.
Terminal asks for Password: BUT will not accept my typed in password > Enter key strokes. As you explain no black dots will appear as I type each character of my password. It repeatedly says
"sorry, try again."
Can anyone help please?
The password is your admin password. It's the same one that you would use for installing a new app (and the same one that you would use for logging in to your account)
When in the terminal, you simply have to type in your password. It will not be visible in any way on your screen. Type it correctly, then press enter.
Make sure it is correct by logging OUT of your account, then log back in. You can't log in unless your password is correct.
THAT password is the one that you would use in your terminal.
Finally, why do you need to essentially disable security on your system. The intermediate "App Store and identified developers" is pretty good for most uses.
Don't disable that setting. If you have an app that gives a security warning, just right click on it and choose "Open" and then click the open button that allows the app to run. You'll only get prompted once for a given app.
The commands with spctl you're trying to run just turn off a level of malware protection that there's no real need to do. Apple doesn't block anything from running. The default setting just needs to be temporarily overridden if you're trying to run some older software or software from unknown origin. This document from Apple provides more detail. Even though it references Sierra (macOS 10.12.x), it's applicable to 10.13.x High Sierra as well. https://support.apple.com/kb/ph25088I cannot remember the situation you refer to.