blog.x-e.ro / lab: page 4 of 50

cron jobs

linux :: automating tasks in linux

cron jobs are automated scripts that run at a specified date/time, or on a specified interval.

anything that can be executed in the terminal on the server can be run as a cron job (this includes commands, applications, scripts, etc).

crontab is the command used to create/view/modify/remove cron jobs.

  • crontab -l lists all scheduled jobs
  • crontab -e allows you to edit jobs
  • crontab -r will delete *all* your active jobs!

once the crontab file has been edited the cron daemon will automatically read it and update it's job que to match the file. you should see the message:
crontab: installing new crontab

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switching to linux

linux :: distrohoppers anonymous

linux screen shot

switching to from windows to linux is one of the best choices i have made in years. the freedom it provides is unparalleled. the fact that it's 100% free, the open nature of it's development, the community focus, and the abundance of free software was enough to convince me to give it a try.

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BLiSS Sim for ipad

mobile :: my first itunes release

BLiSS Sim

the Bioregenerative Life Support System Simulator, BLiSS Sim, is an ipad app, built with titanium studio, based on investigations conducted by NASA scientists and engineers to explore how plants can be grown to provide air, water, and food for astronauts at a lunar base.

BLiSS uses a game format to engage youth and adults in the challenges of supporting humans in space or extreme environments on earth.

The app is free and available for download from the iTunes Store.
Visit the promotional website at: http://bliss-sim.cet.edu/

Read: BLiSS Sim for ipad »

LSDj keyboard tutorial

h4x :: DIY gameboy piano interface

LSDj keyboard

so, making music for LSDj is fun. but after a while you start to wish you could “play" the gameboy software as a musical instrument as opposed to composing music in its tracker style interface. that's where the LSDj keyboard comes in. the idea is, the keyboard sends messages though the gameboy linkport to LSDj. the commands that can be sent vary from playing/stopping notes or chains or tables, un/muting channels, in/decreasing octaves, switching instruments, navigating screens, and more. 
here's what the LSDj wiki says about the keyboard...

Read: LSDj keyboard tutorial »

metroid code breaker

demos :: NES game password generator

many years ago, a rom hacker by the name of SnowBro set out to gain an intuitive understanding of the inner workings of the software we lovingly refer to as metroid. using only the rom file, he was able to convert it into assembly code and learn exactly how the game engine worked.

armed with these files and the knowledge they contained, i set out to build a metroid password generator tool. being a scene kid, i have some experience with keygens already....

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R4-DS

games :: the nintendo DS homebrew revolution

R4-DS the homebrew revolution

the nintendo ds is an awesome portable gaming system. i have the ds lite, its thin, weights under a pound, has two super bright backlit screens, pretty sweet integrated speakers, the classic nintendo plus d-pad, four front buttons, and two shoulder buttons. the bottom screen is touch sensitive, which makes for some awesome gameplay. the touch screen is sick, but a lot of people can be put off by it. so tons of games let your switch between the touch motion and d-pad motion.

the nintendo DS

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gameboy prosound mod

h4x :: console modification for better sound recording

nintendo gameboy prosound mod

today’s mod is for the original nintendo gameboy. if you want to get serious about chip tunes, whether your using lsdj or nanoloop, the sound quality of your instrument is a priority. the stock nintendo gameboy is equipped with a single headphone jack. and if you have ever tried recording anything from that, it sounds pretty bad. thus the prosound modification was invented to add a line out jack to the gameboy.

Read: gameboy prosound mod »

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