Guidelines

What is hashtag concept? A hashtag is a metadata tag that is prefaced by the hash symbol, #. Hashtags are widely used on microblogging and…

What does Genmask mean? According to nixCraft: Genmask : The netmask for the destination net; 255.255. 255.255 for a host destination and 0.0. 0.0 for…

How to add a character at the end of each line with AWK? I would like to add character A at the end of each…

How do I change Chrome Shortcuts on Mac? Go to Settings->Keyboard->Shortcuts, and then from the list on the left select “App Shortcuts”. Click “+” to…

How to enable unattended upgrades on Ubuntu / Debian? Recent releases of Ubuntu also come with unattended-upgrades installed by default. To install the unattended-upgrades package,…

What happens if my SSL connection fails in OpenSSL? If this happens, openssl may display some text from the server, or simply await further input.…

How do I see the contents of my Google Drive? View & open files Go to drive.google.com. Log into your Google account with your username…

Is it possible to execute a Vim script in a..? To execute vim in non-interactive mode, you can use either + {command} / -c {command}…

How is Lasso estimated? Lasso estimates of the coefficients (Tibshirani, 1996) achieve min β ( Y − X β ) ′ ( Y − X…

Can you power an LED without a resistor? When hooking up an LED, you are always supposed to use a current-limiting resistor to protect the…