A collection of interesting and useful tool, it is for ease of use, it will make life easier, and they are mostly written either python or shell.

Printing colors syntax by built-in echo command through all kind of colors.

Showing a branch of high-frequently used linux command in shell syntax.

Login remote ssh server with password in one command.

zdd is the same with dd command except implemented with python, while it's more stable when operates on a big data object.

Create CA key-pair and server key-pair signed by CA