Using pdftk to change pdf files.

About the pdftk tools, we can read the options using –help. We can see many examples and features…See description of this tool.

Let’s try some simple examples. extract all the odd numbered pages:

extract all the even numbered pages:

extranct the pages 25 to 30 and create a new pdf:

extracting… Read More »

Using standard C library sysconf .

Using standard C library sysconf is very simple. See all about sysconf.

The source code is this:

I use stdio.h and unistd.h libs. Also I have two vars tmp and tmp2. This vars will take the result of _SC_NPROCESSORS_CONF and _SC_CLK_TCK using sysconf. Then is print all on shell. Use the gcc to… Read More »

Install povray and arbaro under Fedora .

Install povray-3.6 You need to download it from here. Unarchive the povlinux-3.6.tgz in your user home folder. Let’s install it. Press U and select /home/YOUR-USER/.povray. See the output.

As you see the YOUR-USER is your user. Now , edit the config file to working with arbaro:

Make this settings:

Anyway seam the… Read More »