MySQL is a very fast, multi-threaded, multi-user and robust SQL database server. The latest version is located at /usr/ports/databases/mysql57-server/. MariaDB is a database server that offers drop-in replacement functionality for MySQL1. MariaDB is built by some of the original authors of MySQL, with assistance from the broader community of Free and open source software developers around the world. In addition to the core functionality of MySQL, MariaDB offers a rich set of feature enhancements including alternate storage engines, server optimizations, and patches. The latest version is located at /usr/ports/databases/mariadb55-server/. In this tutorial, you will learn how to install MariaDB server and create a databases, users, and grant sql rights using sql commands on a FreeBSD 10 or 11 server.

=> More info: How To Install MariaDB Databases on a FreeBSD v10/11 Unix Server
Want to open a file in read-only mode on Unix, try:
vim -M file
OR open a tab in read-only mode:
: view file



More info: Open a file or a tab in vim in readonly mode
If you are getting this error then you probably reset the permissions on your keys:

chmod 0400 ~/.ssh/key
chmod 0700 ~/.ssh/
ssh -i ~/.ssh/key user@server




More info: Fixing ssh error.


My shell script depends upon user input. How do I find out if a variable called $_JAIL path is empty under a Linux / Apple OS X / Unix like operating systems? What is the best way to determine if a variable in bash is empty?

Pass the -z option to the if command or conditional expression.

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