I was trying something and execute the below command sudo mv /etc/passwd /etc/passwd.bak Now I am getting the below error whenever I am trying to run sudo...

How to disable/enable WIFI when Ethernet connection is available in Windows 10. My Ethernet connection is faster than my Wifi, but Windows 10 keeps routin...

I selected all the text in a document and colored it all black (which is what I wanted to do). I didn't realize that the document had some hyperlinks...

Serial to USB converter connect to com port in computer. In "device manager" show the com port name and (number). At the same time, In "Devices and printe...

The following is the SQL statement that I found: SELECT d.name, count(e.emp_id) num_employees FROM department d INNER JOIN employee e ON d.dept_id = e.dep...

Are .vimrc and .viminfo the same files but with different names? In every tutorial there are advices to change .vimrc, but I don't have this file, on...

On my Android phone since years I use an app called 'Fastnote' for notetaking. The notes are automatically saved with a filename that correspond...

I found (--) this to add criteria in a sum Function, can you please tell me its exact use. And is this function(--) (whatever it is called by) can be used...

I have a Macbook Pro, mid 2015, Intel I7 2.2GHz 16GB RAM, Solid State Hard Drive. I have installed Virtual Box running Windows 7 and Visual Studio 2019. I...

I've had this problem for at least several months. I noticed a lot of threads without a happy ending: High CPU Usage from "Service Host: Local Servic...