Often when I am using the command line in a terminal on Linux I need to go back more than one directory. Usually you use the command
Which takes you back one level in a directory. For example if you are in /var/www/http and you type cd .. you will be in directory /var/www/.
But what if you are super deep in the directory and need to get back to www directory. Say you are in /var/www/http/website/public and you want to get back to /var/www/http you can either type: cd .. ( inside /var/www/http/website/ )
cd .. (inside /var/www/http/ now )
But you can type the following and get all the way back to the /www/http/ directory in one line cd ../..
That line will take you back two directories. If you need to go further back just continue adding ../..
While trying to figure out how to do this I found lots of bad info, info that lead to nothing but issues and bugs. I have stay so busy and do so many things I can never remember how to do anything. That is basically why this ENTIRE blog exists, my shit memory.
I am all over in the tech. I have quite a few inventions I am working on. I stay busy learning about tech all day everyday and all it does is give me more and more ideas. One day I’ll catch a break and get some money and start inventing away.
Therapeutic Ultrasound with Piezo Components
This is a seriously interesting article about the medical uses for piezo generated waves. Things such as tumor destruction, targeted medicine release and Intravascular Lithotripsy ( plaque removal in the arteries ) I was just thinking about how we need a way to remove plaque to help reduce blood pressure and extend life the other day. I think about an insane amount of things all the time, the more complex the better.
This has some interesting information on the subject. I got into the piezo devices because I designed a mining device that has 0 ZERO mechanical parts. I want to build a mining device because I want to get off earth and live inside an asteroid, a ship inside an asteroid to be highly stealthy and hide from other life. There is other life, Earth is roughly 1/4 the age of the universe, it has had billions of years to find us and hide from us. That is a series of articles though. I even know why aliens probe buttholes and E.T’s finger glows. LOL