Drupal 7 - Where to find - HTML header

Where to find the HTML header of Drupal version 7?

Here the breadcrumb until the file:

/modules/system/html.tpl.php

 

UNIX & GNU/Linux - Tips and tricks - Change the screen resolution

The command to change the screen resolution is xrandr, To see all size available for your screen:

$ xrandr

To choose the another one resolution just use the -s option with the resolution, for example:

$ xrandr -s 800x600

UNIX & GNU/Linux - System calls - Using open()

The open() system call function is used to open a file.

UNIX & GNU/Linux - tar - The xvf command

The xvf command of the tar tool allows to extract files from a file with the .tgz extension, in the current folder. Let's see an example of the xvf command:

UNIX & GNU/Linux - gcc - Commands -v

With the -v command of the gcc, you can see all programs invoked by the compiler. Let's try with an example of the -v command:

gcc -v

Result (certainly different on your system):

UNIX & GNU/Linux - Tips and tricks - Change keyboard language

An easy way to change the keyboard language on Linux is to write this command on your favourite terminal:

setxkbmap lang

Where lang is the language you want. As an example to change the keyboard in french:

setxbmap fr

Or for an american keyboard:

setxbmap us

 

C - Pointers - Some examples

We can see with examples below that myString[0] == *myString == *(&myString[0]) == H.

Why?

Because myString[0] points the first character of the string "Hello World", in this case "H".

C - Unary operators - Using sizeof()

The sizeof() unary operator is often used, so it is important to know some tricks that we can do with it.

It is used to calculate the sizes of datatypes and it takes one argument: the type.

The main purpose of sizeof() is of course to allocate memory in conjuction with malloc.

C - Library functions - Using free()

The free() function is the sister of the malloc() function. As malloc() returns the address of the first byte of the allocated memory, free() accepts, as only parameter, the address of this first byte.

C - General Programming - Beep function

In this tutorial we will see a simple beep function. Let's take an example of the beep function:

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