blog.x-e.ro / page 5 of 157
in the unix world programs are commonly configured in two different ways, via shell arguments or text based configuration files. programs with many options like text editors are configured on a per-user basis with files in your home directory ~. in unix like operating systems any file or directory name that starts with a period or full stop character is considered hidden, and in a default view will not be displayed. thus the name dotfiles.
it's been said of every console user:
you are your dotfiles
ok, i said that ;P
since they dictate how your system will look and function.
i manage mine with gnu stow, a free, portable, lightweight symlink farm manager. this allows me to keep a versioned directory of all my config files that are virtually linked into place via a single command....
linux :: running github's open source text editor
update: this post is outdated & atom sux
atom is a "hackable text editor for the 21st century" created by the team at github. it's designed to be customizable, but also usable without needing to edit a config file.
because we spend most of our day in a text editor, the single most important feature we wanted in an editor was extensibility. atom is built with the same open source technologies used by modern web browsers. at the core of atom is chromium, the open source project behind google chrome. with that comes all the power and innovation being developed for the web. but more importantly, extending atom is as simple as writing javascript and css, two languages used by millions of developers each day.
atom.io
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
linux :: distrohoppers anonymous
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.
code :: source code management with git
git is a distributed revision control and source code management (SCM) system with an emphasis on speed. git was designed by linus torvalds, of linux fame, for managing the development of the kernel. every git working directory is a fully fledged repository, complete with revision tracking abilities independent of a network or centralized server. git is 100% open-source, freeware, and distributed under the GNU general public license v2.
mysql string replacements : quick and dirty sql example
sql :: quick and dirty sql example
sometimes you find the need to do mass string replacements in your mysql/maria databases. here's how i do it:
UPDATE your_table
SET your_field = REPLACE(your_field, 'old_value', 'new_value')
WHERE your_field LIKE '%old_value%'
BLiSS Sim for ipad : my first itunes release
mobile :: my first itunes release
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/
