WTF is UTF?

By | December 27, 2018

UTF stands for Unicode Transformation Format. The most popular version is UTF-8 which represents 8 bits or 8 one’s or zero’s. (11111111 -> 00000000). The secret though is that it uses up to 4 bytes. We know that 1 byte = 8 bits so 4 bytes gives us 32 bits. 8 bits can represent 255… Read More »

What does > /dev/null 2>&1 mean?

By | December 15, 2018

Here is a great write up explain what the cryptic symbols mean. https://medium.com/@codenameyau/step-by-step-breakdown-of-dev-null-a0f516f53158 Combine this with command -v to bypass “normal function lookup” from https://askubuntu.com/questions/512770/what-is-use-of-command-command we can use this to check if certain applications exist.

How to install Ubuntu Guest Mode on Virtual Box on OSX

By | November 9, 2018

If you are running Ubuntu on Virtual Box you will want to make sure you can copy and paste between the to environments. Simply turning on Bidirectional won’t work using a normal Ubuntu ISO. You need to upgrade to Guess Addition. Guest Additions provide additional capability to a guest virtual machine, including file sharing and… Read More »