Computers and Technology Articles
Whats a Linux Process - ...m's credentials (which user and group owned the process, for example)
The program's current directory
Which ...
Common PHP Errors - ...>
will return an error similar to the following:
Parse error: parse error, unexpected T_ECHO in c:\webserver\test2.php on lin...
POSIX Interfaces - ...16-bit machine does not have the same native word size as a 64-bit machine, and a low-level programming language should not pretend it does—...
PHP mail - ... e-mails using the mail function. The format for the mail function is as follows:
mail($to, $subject, $message, $headers);
...
Common Linux Security Holes - ...IV>
1: /* bufferoverflow.c */
2: 3: #include <limits.h>
4: #include <stdio.h>
5: #include <string.h>
6: ...
Java EE Platform - ...pment. The runtime environment is widely used in Web browsers to run small applications known as applets. The development kit is used to compile and d...
Java EE Architecture - ...rnal integration. The following is a list of major technologies provided by Java EE.
Enterprise Applications and Transactions
Compone...
About Ipods and Iphones - ...an be recalled and listened while commuting places.
Ipods actually stormed the music industry and created followers of young breed of music ...
Relational SQL Databases - ...te also that every row of data in the primary key must be unique to one another. Here is the statement required to create our database (called gam...
SQL Data Import Methods - ...we use \N to specify a field that contains NULL and an extra tab is required after each row of data to signify the end of that row. We have saved ...
Install MySQL on Windows - ...eed to select the option MySQL 3.23 Production release (recommended). This will take you to a new page where you can select the package to ...
Emax vs. vi Unix text editors - ...environment of its own. vi is small and is designed to be one piece of the Unix environment. Many clones and alternative versions of each editor h...
Running a Linux Program as a Daemon - ...the program and a meaningful exit code to be returned. This type of work includes parsing configuration files and opening sockets.
...
PHP Date and Time - ...eplaced with the date or time section that they represent. For example:
<?php echo date("d/m/Y"); ?> outputs 11/02/2003
&...
PHP Random Password - ...rd($length) {
$possibleCharacters = "abcdefghijklmnopqrstuvwxyz1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ";
$characterLength = strlen($possibleCharac...
Importing Java Packages - ...end of the package name. This means that it will include all of the classes within the package (i.e., the asterisk is used as a wildcard).
Ano...
Joining SQL Tables - ...them (although when the statement is executed the actual data is compared).
For an example of how we can use joining, let's look back to the...
Linux Console Capabilities - ...ape character signals the beginning of an escape sequence and changes the processing mode to escape mode.
For example, consider the fo...
What is a Java Package - ...e of the name of a variable.
The following table shows some of the main packages that are include...
Variable Scope - ...this code block
inside = outside;
}
outside = 5;
// inside cannot be accessed here
The variable inside cannot be access...
Notional Lineage of Unix Systems - ...ntained Unix operating systems that were derived from the original Unix implementation done by Bell Laboratories.
The Berkeley version of Un...
Regular Expressions in Java - ...to match to string data. In the String class, you can use the method matches to match a regular expression passed as a parameter of type String to the...
Invocation Chaining - ...follows:
int i = 72;
String str = String.valueOf(i);
char firstChar = str.charAt(0);
System.out.println(firstChar); // prints...
Free Software Licenses - ...pen Source Software. (There are no legal constraints on the use of the term Open Source, but there are on the OSI Certified Open Source Software...
Introduction to SQL - ...hat would have 100% support of the SQL standard.
Let's first look at some simple interactions that we can perform using the SQL language. Le...