Install MySQL on CentOS 7
install yum repos as mentioned here on installing mariadb instead of mysql
Technical
How do I enable night mode in display of Xubuntu?
save your eyes bro!
Install different php 5.x and php 7.x on Ubuntu 18.04
Install and configure php version 5 and 7 in one linux machine
Using dropbox as a private git repository
An easy solution to starting Git with Dropbox, hosting free, powerful files.
How change Local Remote Directory Git in Linux
Change Local Remote Directory Git