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Yesterday I were bored. So I took the linux sources and I began think­ing at some inter­est­ing modify I could make.

So, ehm, well… I did some­thing unusual. I’m proud to present the really-very-most-useless-patch-of-the-year:

Add a boot option “logonum” that allow the user to choose how many pen­guins to show in the frame­buffer at startup. If no “logonum” is spec­i­fied, it shows as many pen­guins as the online cpus (the default behavior).

Signed-off-by: Giu­liani Vito, Ivan <giuliani.v@gmail.com>

The patch can be found here: http://lugbari.org/~kratorius/patches/give-me-more-penguins-2.6.19.patch
This patch applies to 2.6.19 vanilla sources.

(Con­tinue reading…)

So the Lin­ux­Day is gone this year too… It has been an amaz­ing expe­ri­ence, I talked about inkscape at 50-60 people. And most of them were really inter­ested in what I was saying, and this is a real miracle :)

By the way, if you want to have a look at my slides, you can find them at http://​lug​bari.​org/​b​i​n​/​v​i​e​w​/​M​a​i​n​/​L​i​n​u​x​D​a​y2006, next to my presentation’s title: “Inkscape: grafica vet­to­ri­ale su Linux”.

In Italy, every year, there’s a day named “Lin­ux­Day” where we pro­mote the use of Linux and free soft­ware. Every LUG (a Linux User Group) orga­nize this event in their city.

I am a member of the LUG of my city (LUG­Bari), and this year I will talk about Inkscape. If you want to see the full pro­gram, follow this link: http://​lug​bari.​org/​b​i​n​/​v​i​e​w​/​M​a​i​n​/​L​i​n​u​x​D​a​y2006

And if you want to meet me, come and join the event!

Bash has some useful short­cuts that most of users are unaware of. Here I’m describ­ing some of them that I found very very useful:

1. Screen clear: are you tired of typing clear all the times you want to get your screen cleared? Hint: press ctrl + L.
2. Reverse search: sometimes could happen that you have to retype some command you previously typed. So why don’t look for the command in the history? Press ctrl + R and begin typing the command. Bash should autocomplete it!
3. Command substitution: if you wrote your command and you typed a wrong letter, why to rewrite all the command? Just substitute the mistaken word. How? Use ^texttosobstitute^sobstitution. For example, if you typed apt-get updatke, you can fix it by typing as next command ^updatke^update (or simpler: ^tk^t).
4. Latest action: do you want to repeat the last command? Just use !!. It will (re)execute the latest command you given.
5. Latest parameter: and if you want to use once again the latest parameter you typed in the last command? !$ is made for you… For example, let suppose you renamed film.avi in my_new_divx.avi with mv film.avi my_new_divx.avi. If you want to see it you can just type mplayer !$. That’s all (and there’s !* that refers to all the argument passed in the previous command…).

I use these short­cuts from the time I’ve dis­cov­ered them and I found them very useful (espe­cially the number 1!). So, why don’t share such things with the other guy over here?