Make sure you have installed Image Magic sudo apt-get install imagemagick And then, from the command line: mogrify -resize 50% *png # keep image aspect ratio mogrify -resize 320x240 *png... Read more »

Terminal commands: # Update system: sudo apt-get update sudo apt-get upgrade # Restricted extras: sudo apt-get install ubuntu-restricted-extras # CCSM: sudo apt-get install compizconfig-settings-manager # if youuse gnome sudo apt-get... Read more »

You have foo.rb open in your feature branch and you want to check how this file was on the mater branch? Do this: :Gedit master:foo.rb Syntax: :Gedit [branch name or... Read more »

git remote prune origin Read more »

Moving current window to the position 0: Ctrl + B + : (to enter command mode) move-window -t 0 The tip was found here. Read more »

Hi there. I’ve been willing to practice pair program. Since that is not something I can achieve in my current job, my goal is to do that remotely with anyone... Read more »

I just found a great alternative to the following command: mv /tmp/a/b/c /tmp/a/b/d Well, turns out there is a short hand alternative for accomplishing the same result: mv /tmp/a/b/{c,d} Read more »

This are the steps: # service mysqld stop # mysqld_safe --skip-grant-tables & # mysql --user=root mysql MYSQL> update user set Password=PASSWORD('new-password') where user='root'; MYSQL> flush privileges; MYSQL> exit; # service... Read more »

sudo mkdosfs -n 'Label' -I /dev/sdX Read more »

Just recently a German company showed interest in hiring me. I was very happy and surprised. They phoned me, and we kept in touch for a few weeks. They even... Read more »

I found this great article on how to achieve that. Read more »

I had a hard time trying to achieve the above. Every time I tried to copy create a usb recovery disk for windows 7 it did not work. I could... Read more »

Add the gem to your gem file # Gemfile gem 'capybara-webkit' And bundle bundle install Ooops! That gave me the error: qmake: could not find a Qt installation of ”...... Read more »

In order to test engine routes (and controllers) you may need to set the routes attributes: describe Gossiper::NotificationsController, 'routing' do # here's the trick routes { Gossiper::Engine.routes } it "routes... Read more »

sudo dd if=image.iso of=/dev/sdX bs=4096 Read more »

Keep Ctrl+w from closing Firefox tab When working with Vim I tend to hit Ctrl+w so I can change splits. I also tend to do that while im not focused... Read more »

Depois de instalar o java, parece que o que foi preciso fazer foi o seguinte: sudo ln -s /usr/lib/jvm/java-7-oracle/jre/lib/amd64/libnpjp2.so /usr/lib/firefox-addons/plugins A dica veio daqui. Funcionou do ubuntu 13.4. Read more »

I got this error when trying to bundle an Rails 4 application. My ruby version was ruby-2.0.0-p195. How I got it fixed rvm get stable rvm install 2.0.0 # installed... Read more »