Display available memory on Linux / Ubuntu
Run this command from a terminal window. This works on debian, ubuntu, and redhat. I’m sure it works on others but those are the only ones I have access to.
A "live" view of a logfile on Linux
This approach works for any linux operating system, including Ubuntu, and is probably most often used in conjunction with web development work.
Installing PHP5 and Apache on Ubuntu
If you are doing any kind of PHP development, you’ll almost always be using Apache along with it. Here’s the quick and easy way to get PHP up and running on your Ubuntu box.
Adding extra Repositories on Ubuntu
Repositories on Ubuntu are the locations that you can download software from. As a general rule, the default repositories don’t contain the right locations for most software packages that you’ll want to install. Y...
Restore MySQL database from a backup file
There are many reasons you would want to restore a database from a backup file… But you should also test this on a test server just to make sure that your database backups are working correctly. Here’s the syntax:...
Backup MySQL Database to a file
Backing up your database is a very important system administration task, and should generally be run from a cron job at scheduled intervals. We will use the mysqldump utility included with mysql to dump the contents of the da...
Change or Set the MySQL Root password
For every database, you should set the root or sa passwords to something other than the default, unless you want to get hacked. For mysql, the system administrator user is called root. You will use the mysqladmin utility from...
Switch MySQL to listen on TCP
By default, MySQL only allows connections from the localhost address. The configuration file is usually found in /etc/mysql/my.cnf
List disk space usage on Ubuntu
Simply open a new Terminal window and type in this command
Make Ubuntu Stay in Root Mode
Instead of having to constantly type in ‘sudo’ every time you need to make an admin change, you can use one of these commands to act as root.
Ruby If, Else If Command Syntax
The Ruby language has a very simple control structure that is easy to read and follow.
