分类
TechNote

Capturing the first frame of an animated GIF with ImageMagick

convert “animation.gif[0]” file.jpg

Ref: http://devblog.bluefuton.com/post/2976224441/capture-first-frame-animated-gif-imagemagick

分类
TechNote

set default grub options

1. open /etc/default/grub
2. then change anything you want