Guruhowtos

When your firefox freezes or crashes repeatedly, or behaves in an expected manner, it could be due to a buggy firefox extension. Mozilla has identified such problematic firefox extensions and created a list of how to fix them.
If you went through my 50 best firefox extensions, you will find fixes for [...]

Firefox users were able to optimize and speed up Firefox performance by several tweaks. Now Firetune does it for you without all the technical hassles.
FireTune for Mozilla Firefox v1.x does easy and fast optimization of your browsing experience with Firefox. It is based on a collection of popular and well working [...]

Are you getting the bandwidth and speed you paid for with your internet connection?
How do you find out how much is your bandwidth or speed of your internet connection?
A simple way is to use the Bandwidth Speed Test. Just select the type of internet connection you have and it checks your internet [...]

Google Web Accelerator is an application that uses the power of Google’s global computer network to make web pages load faster. Google Web Accelerator is easy to use; all you have to do is download and install it, and from then on many web pages will automatically load faster than before.
How [...]

1.  Upgrade Your RAM
Yeah, the most obvious tip but people hardly upgrade it. RAM these days is very cheap, especially if you buy it through Amazon or eBay. When I checked Amazon, the price of 1 GB RAM was around $20-$30.
2. Get Rid of Unneeded Software
Most PCs come shipped with unneeded software. Uninstall [...]

To do simple calculations in bash, the ((…)) command can be used:
$ echo $(( 10 + 10 ))
20
To do floating point or more complex math, try the bc command:
$ echo “scale=5; 5/3″ | bc
1.66666
To convert hex values to decimal, the ((…)) or bc command can be used:
$ echo $((0xff))
255
$ echo ‘obase=10; ibase=16; FF’ | bc
255
Note [...]

When a Linux system has been running for a while memory fragmentation can increase which depends heavily on the nature of the applications that are running on it. The more processes allocate and free memory, the quicker memory becomes fragmented. And the kernel may not always be able to defragment enough memory for a requested [...]