Koen Aerts

Database, DB2, Oracle, SQL

SQL Developer with a DB2 Database

Originally called Raptor – SQL Developer has become quite a decent SQL Development tool over the years. The nice thing about it, besides the fact […]

DB2, UNIX/Linux

You just installed DB2 as non-root user on Linux and when you attempt to start your instance with the db2start command, you get the following […]

Electronics, HTML

Besides coding in Objective-C on a Mac in order to create native apps for the iPhone, the iPod Touch and the iPad, you also have […]

Regular Expression, UNIX/Linux

To search and replace a string globally in the vi editor, use the following syntax: :%s/search_string/replacement_string/g

Electronics, Hacks

In September 2009, the Real Canadian Superstore gave away free DVD players with the purchase of at least $250 in groceries. The DVD player they […]

Scripting, UNIX/Linux

If you need to convert a DOS text file to a UNIX text file, and the dos2unix command is not available on your platform, you […]

Scripting, UNIX/Linux

The example below shows how you can exclude file “somefile.txt” and directory “subfolder6” from the tar command:

Scripting, UNIX/Linux

Although there are several ways to achieve this, the way I most often tar and gzip files using a single command line is as follows: […]

Firmware, UNIX/Linux

If you have a jailbroken iPhone or iPod Touch, it is quite simple to block many advertisement sites from being displayed either in your Safari […]

UNIX/Linux

In order to mount an ISO image in Linux, so that you can access its contents, use the following command. You may need to change […]