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In the case of Tasks mode, after you ve made an entry, clicking the check box alongside it will mark it as completed. Completed items appear with a strike-through. To add a new memo or task, click the bar that reads Click to Add a Memo (or Task), type a description, and then press Enter. You will be able to enter more tasks or memos in the same field. Double-clicking a task or memo allows you to fine-tune its details. For example, you can add a due date for a task, so you ll know when the task must be completed. You can also add a description for future reference and attach files by clicking the relevant button on the toolbar. By clicking the Status Details button in the Task Details dialog box, you can also set a percentage figure for completion of the task, as well as its priority, ranging from low to high. By adding these details, a quick scan over your tasks will give you a good idea of which jobs are overdue, which need attention, and which will stand a little procrastination. After you ve added these details, right-click the Summary bar (at the top of the main window) and select Add a Column. You can now drag and drop elements onto the main window to get a better view of your tasks, as in Figure 14-12.

The combination of Apache, MySQL, and PHP is very popular with web developers. Apache serves pages that read scripts written in PHP which query databases written in MySQL. , Setting up MySQL involves more than just enabling a module. MySQL is a service process on its own that you need to install and configure. If you ve already installed MySQL, your server starts it automatically. You can check if it s there by using the command ps aux | grep mysql. If you can t see anything, use dpkg -l | grep mysql to check if the MySQL packages are installed. If you don t see the mysql-server package in the output (check Listing 11-9 to see what it looks like if it is installed), install it by using apt-get install mysql-server-5.0. Listing 11-9. Use dpkg -l to Check if MySQL Has Been Installed on Your Server root@RNA:~# dpkg -l | grep mysql ii libdbd-mysql-perl 3.0008-1build1 database interface to the MySQL data ii libmysqlclient15off 5.0.38-0ubuntu1 database client library ii mysql-client-5.0 5.0.38-0ubuntu1 database client binaries ii mysql-common 5.0.38-0ubuntu1 database common files (e.g. /etc/mysql ii mysql-server 5.0.38-0ubuntu1 database server (meta package dependin ii mysql-server-5.0 5.0.38-0ubuntu1 database server binaries ii php5-mysql 5.2.1-0ubuntu1 module for php5 A Perl5\ mysql\ mysql\ mysql\ mysql\ mysql\ MySQL\

It is possible to change the type of a column in an existing table, but I find it a bit scary For example, if you change from text to numeric values, 10 will probably be fine, but 1o will cause an error I prefer a more conservative approach: I make a new table with the appropriate types, and then insert the old values with the aid of a conversion function Listing 11-9 shows how we could create a new table with a numeric value for the Handicap column..

Now that you know a bit about where Ubuntu Linux came from, how it s different, and why you might want to use it, it s time to get Ubuntu running on your own desktop or laptop, using the DVD that s included with this book. Most computers in the world run Windows, but very few people install Windows themselves. They have no need to, because almost every computer you can buy comes with Windows pre-installed. By contrast, it s rare to find companies selling new computers with Ubuntu or any other flavor of Linux on them. There are exceptions for example, a company called System 76 supplies excellent hardware to customers in the United States and Canada with Ubuntu pre-installed. And even Dell has been known to offer Ubuntu on a limited range of its computers, notably the inexpensive Inspiron Mini 10 netbook. But for most of us, getting Ubuntu means installing it for ourselves. This can seem a daunting prospect if you haven t done it before. However, Ubuntu makes this job as easy as it s possible to be. Its installation routines are very advanced compared to previous versions of Linux and even compared to other current distributions. What does saying that you re going to install Ubuntu actually mean It involves three things: Somehow, all the files necessary to run Ubuntu are going to be put onto your hard disk. The PC will be configured so that it knows where to find these files when it first boots up. The Ubuntu operating system will be set up so that you can use it.

However, in order to do all this and get Ubuntu onto your PC, you must undertake some preparatory work, which is the focus of this chapter.

Because a database such as MySQL is typically managed by a database administrator (Linux admins generally don t care about databases), MySQL has its own root user. Before you can do anything with MySQL, however, you must set a password for this user, and you ll do this with the mysqladmin command: mysqladmin -u root password secret