Useful tips for everyday
What provides iostat? The iostat tool, provided by the sysstat package, monitors and reports on system input/output device loading to help administrators make decisions about…
How do you run a history command number? Use Key combination Ctrl – r , you will be able to use keyword to search bash…
Can viruses exploit zero days? Malware writers can exploit zero-day vulnerabilities through several different attack vectors. Sometimes, when users visit rogue websites, malicious code on…
Is it safe to verify phone number? And while it may seem like a lot of personal information to give away, it’s important to realize…
How do you fix a TV that turns on and off by itself? Why does my TV turn on by itself? Check your power source.…
How to create a custom configuration XML file? If a sample configuration file does not suit your desired setup and if a custom configuration XML…
How do you delete backups in time machine? Go to the time machine icon on the menu bar, click enter time machine. After your desktop…
What is an occlusion map? An occlusion map is a greyscale image, with white indicating areas that should receive full indirect lighting, and black indicating…
How does the solar cell work? When sunlight strikes a solar cell, electrons in the silicon are ejected, which results in the formation of “holes”—the…
How do you know whether to use a paired t-test or a two-sample t test? Two-sample t-test is used when the data of two samples…