This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.
To capture the video (filesize: 19MB), using the free "QuickTime Player" application:
$ git branch -r --merged | | |
grep origin | | |
grep -v '>' | | |
grep -v master | | |
xargs -L1 | | |
awk '{split($0,a,"/"); print a[2]}' | | |
xargs git push origin --delete |