*Nix4all

I wrote this a couple of years backup, I put a lot of effort into it back then.
(it really seems kinda stupid now)

#!/usr/bin/php
<?php

A couple of interesting bash stuff I found on the www:
(It's Public Domain)

1. Shell variables can be specified like $var or this ${var}.
$ var='a.ads,fssd2342%asd234#@.,&%,sdfgsdfgas4352'
echo ${var}
a.ads,fssd2342%asd234#@.,&%,sdfgsdfgas4352
2. ${#var} is the length of the variable.
$ echo ${#var}
42
3. ${var:pos} substrings the variable starting at pos.
$ echo ${var:10}
2342%asd234#@.,&%,sdfgsdfgas4352
4. ${var:pos:len} substrings the variable starting at pos with a max length of len.
$ echo ${var:10:5}
2342%
5. ${var#pattern} strips pattern from the front or left hand side of the variable. This form is not greedy meaning it stops as soon as the pattern is matched. ${var##pattern} is the greedy form.

Bogomips -- unscientific measurement of CPU speed made by the Linux kernel when it boots, to calibrate an internal busy-loop.
In other words ""the number of million times per second a processor can do absolutely nothing" :)

Busy waiting or spinning is a technique in which a process repeatedly checks to see if a condition is true.

I found this script on wikipedia that implements a "busy-loop" using pthread.h.
So basically a thread is waiting for another to increment the value of an integer "i", and when this happens it prints something like "i was updated, value of i is "bla...bla".

This article is *really copied* from:

http://searchenterpriselinux.techtarget.com/expert/KnowledgebaseAnswer/0...

But guess what? :) The website won't really show you the article cause they make you login in / create a member account to see it, so believing in freedom of information I'm going to post it here :

UPDATE: Only If the referring site is google.com you get prompted for registering

As you may know, Unix was "invented" in 1969 and developed in the 70's. By the 80's there were two distinct branches, System V and BSD. System V was always considered more commercial, while BSD was the university model, and was developed during the 80s at the University of California Berkeley. The original Sun OS was based on BSD, though BSD eventually died a slow death with Sun moving to Solaris.

Everybody knows who Linus is right? Just to be sure, here is what wikipedia says:
"
Linus Benedict Torvalds [ˈliːnɵs ˈtuːrvalds]; born December 28, 1969 in Helsinki, Finland) is a Finnish software engineer best known for having initiated the development of the Linux kernel. He later became the chief architect of the Linux kernel, and now acts as the project's coordinator.
"

Famous quotes:

Interesting colloquium (video recorded) from the University of Washington where Jeff Dean, Google employee and fellow, known for his great work within the Google corporation talks about Google's existing hardware and software infrastructure and several of their problems and ways of solving them.

From:
http://norfolk.cs.washington.edu/htbin-post/unrestricted/colloq/details....