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去掉片头广告

ffmpeg -ss 00:00:00 -i input.mp4 -vcode copy -acodec copy output.mp4

Multiple SSH Keys settings for different github account

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "[email protected]"

	#!/bin/bash
	# /usr/bin/blurlock

	# take screenshot
	# import -silent -window root /tmp/screenshot.png
	scrot -z /tmp/screenshot.png

	# blur it
	# convert /tmp/screenshot.png -brightness-contrast -20x20 -colorspace LinearGray -blur 0x5 -average /tmp/screenshotblur.png

	# http://guides.rubyonrails.org/configuring.html#configuring-generators
	Rails.application.config.generators do \|g\|
	g.assets = false # no assets
	g.helper = false # no helper
	end

	case $1 in
	start)
	sh $CATALINE_HOME/bin/startup.sh
	;;
	stop)
	sh $CATALINE_HOME/bin/shutdown.sh
	;;
	restart)
	sh $CATALINE_HOME/bin/startup.sh
	sh $CATALINE_HOME/bin/shutdown.sh

	touch /Applications/App.app
	touch /Applications/App.app/Contents/Info.plist
	killall Dock

	mysql>select concat('KILL ',id,';') from information_schema.processlist into outfile '/tmp/a.txt';
	mysql>source /tmp/a.txt;