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Mac Tips
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MacTips.md

How to find what program's running on a given port

See what's running on port 80

sudo lsof -i :80

Restart Audio

sudo kill -9 `ps ax|grep 'coreaudio[a-z]' |awk '{print $1}'`

Flush DNS Cache

## Mavericks

dscacheutil -flushcache
sudo killall -HUP mDNSResponder


## Lion or Mountain Lion

sudo killall -HUP mDNSResponder

## Mac OS X v10.6

sudo dscacheutil -flushcache

Clipboard image to Embedded HTML (via Data URI)

Get pngpaste, then…

pngpaste - | base64 | awk '{print "<img src=\"data:image/png;base64,"$1"\">"}' | pbcopy

Convert movie to GIF

ffmpeg -i my-movie.mov -s 800x600 -pix_fmt rgb24 -r 10 -f gif - | gifsicle --optimize=3 --delay=10 > my-movie.gif

See OS X Screencast to animated GIF

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