lukehedger

$ du -h -d 1 ./

lukehedger

# open global git config
$ atom ~/.gitconfig

[alias]
	today = !git log --since=midnight --author=\"$(git config user.name)\" --oneline
	yday = !git log --since=day.before.yesterday.midnight --until=midnight --author=\"$(git config user.name)\" --oneline
	co = !git checkout
	pu = !git push -u
	ci = !git commit -am

lukehedger

$ ll
$ sudo chown -R hub_bot:www-data .
$ sudo chmod -R 755 .

lukehedger

$ ffmpeg -i input.mp4 -vcodec h264 -acodec mp2 output.mp4

lukehedger

// run this in Chrome with the --enable-precise-memory-info flag
// $ open -a "Google Chrome" --args --enable-precise-memory-info

timer = function() {
	requestAnimationFrame(timer)

	var heapBefore = window.performance.memory.usedJSHeapSize

	// run processes here
	// eg. console.log allocates 2216 bytes, new Object() 56 bytes

lukehedger

$ ffmpeg -i movie.mp4 -ss 00:00:05 -t 00:01:00 -async 1 cut.mp4
# -ss = start time
# -t = duration, not end time

lukehedger

ffmpeg -i file.mp4 -r 60 $filename%03d.jpg

lukehedger

# get a log of today's commits
$ git config --global alias.today '!git log --since=midnight --author="$(git config user.name)" --oneline'
$ git today

# get a log of yesterday's commits
$ git config --global alias.yday '!git log --graph --since=day.before.yesterday.midnight --until=midnight --author="$(git config user.name)" --oneline'
$ git yday

lukehedger

nano ~/.bash_profile
# or subl ~/.bash_profile

# add the following to your bash_profile and any other commands you use regularly

# command aliases
# git
alias gs='git status'
alias gpom='git push origin master'
# cd 

lukehedger

$ brew install rbenv ruby-build
$ echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
# restart terminal
$ type rbenv
#=> "rbenv is a function"
$ rbenv install --list
#=> list of all available installations
$ rbenv install 2.1.3
#=> install specified version
$ rbenv global 2.1.3