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w_scan -X -F -t 3 > channels.conf

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# as normal user
xfconf-query -c xfce4-session -np '/shutdown/ShowHibernate' -t 'bool' -s 'false'
xfconf-query -c xfce4-session -np '/shutdown/ShowSuspend' -t 'bool' -s 'false'
xfconf-query -c xfce4-session -np '/shutdown/ShowHybridSleep' -t 'bool' -s 'false'
xfconf-query -c xfce4-session -np '/shutdown/ShowSwitchUser' -t 'bool' -s 'false'

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# starting at 00:00:00, duration of 00:00:30 (hh:mm:ss)
ffmpeg -ss 00:00:00 -t 00:00:30 -i input.mp4 -acodec copy -vcodec copy output.mp4
avconv -ss 00:00:00 -t 00:00:30 -i input.mp4 -acodec copy -vcodec copy output.mp4

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var PseudoRandom = PseudoRandom || {};
PseudoRandom.seed = 12345 * (12345 + new Date().getMilliseconds());
PseudoRandom.random = function() {
	this.seed = parseInt(("" + (12345 * this.seed)).substr(0, 13));
	return parseFloat("0." + ("" + this.seed).split("").reverse().join(""));
};

// Example
for (var i = 0; i < 10; i++) {
	document.write(PseudoRandom.random() + "<br />");

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# sqrt(cos(x))cos(60x)+sqrt(abs(x))-0.6*(6-x^2)^0.01
http://www.google.com/search?q=sqrt(cos(x))cos(60x)%2Bsqrt(abs(x))-0.6*(6-x%5E2)%5E0.01

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# from (8-3)+1 to 8
head -n 8 file.txt | tail -n 3

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