You can press and hold the Option key when clicking on the Wi-Fi icon in the menu bar. This way, you'll be presented with the extended menu of options and there find the option to disconnect from the currently connected access point without forgetting it or turning off the Wi-Fi.
Clicking on Wi-Fi menu bar icon normally
Clicking on Wi-Fi menu bar icon while ...
If the goal is simply to ensure that you use the LAN when available, and wifi otherwise, then you don't need to disconnect the wifi at all.
Simply drag the Ethernet entry above the Wi-Fi entry in the Network pane of System Preferences, and it'll use the former when available. The wifi can remain connected, but it'll only be used for data when the LAN is ...
The .eml file is a mail file that is based on the MIME RFC 822 specification. It's basically a text format that pretty much all Mail applications can open
Outlook (macOS, Windows, iOS, Android) / Outlook Express (Windows Only)
Microsoft Mail (Windows 10)
Apple Mail (macOS)
Regarding your question, you don't need to setup a Gmail ...
Open Activity Monitor and force the app to quit. If you still can’t remove it you might need to use a safe boot or safe log in holding shift when you boot or shift when you enter your password to log in again to prevent the app from starting.
No, what you're asking for is not possible. There's no "tweak" to remove the "auto hide feature" because it's not a feature; it's a design element of macOS.
Apple provides very specific guidance when working with the Title Bar within the Frame in their guidelines in Window Anatomy of their Human Interface Guidelines for macOS:
This is ...
It doesn't immediately seem possible, no.
The hdiutil tool itself has no option to write to stdout.
It cannot be tricked by using /dev/fd/1 as the output file either.
Creating a named pipe using the mkfifo command doesn't work, as the hdiutil checks for the existence of the file before starting.
In this case it is possible easier for you to simply stream ...