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How do I know the script file name in a Bash script?

... me=`basename "$0"` For reading through a symlink1, which is usually not what you want (you usually don't want to confuse the user this way), try: me="$(basename "$(test -L "$0" && readlink "$0" || echo "$0")")" IMO, that'll pro...
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Emulate ggplot2 default color palette

...on(n) { hues = seq(15, 375, length = n + 1) hcl(h = hues, l = 65, c = 100)[1:n] } For example: n = 4 cols = gg_color_hue(n) dev.new(width = 4, height = 4) plot(1:n, pch = 16, cex = 2, col = cols) share | ...
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How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]

... don't get is how multiple clients can simultaneously connect to say port 80. I know each client has a unique (for their machine) port. Does the server reply back from an available port to the client, and simply state the reply came from 80? How does this work? ...
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What is the best way to convert seconds into (Hour:Minutes:Seconds:Milliseconds) time?

... For .Net <= 4.0 Use the TimeSpan class. TimeSpan t = TimeSpan.FromSeconds( secs ); string answer = string.Format("{0:D2}h:{1:D2}m:{2:D2}s:{3:D3}ms", t.Hours, t.Minutes, t.Seconds, ...
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Merge Images Side by Side(Horizontally)

I have five images of sizes: 600x30, 600x30, 600x30, 600x30, 810x30. Their names are: 0.png, 1.png, 2.png, 3.png, 4.png, respectively. ...
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Difference between declaring variables before or in loop?

... 260 Which is better, a or b? From a performance perspective, you'd have to measure it. (And in my o...
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Force the origin to start at 0

... 205 xlim and ylim don't cut it here. You need to use expand_limits, scale_x_continuous, and scale_y...
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Best way to represent a fraction in Java?

... //only numerator should be negative. if(denominator.signum() < 0) { numerator = numerator.negate(); denominator = denominator.negate(); } //create a reduced fraction BigInteger gcd = numerator.gcd(denominator); this.numerator = numerator.divide(gcd); ...
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Rename Pandas DataFrame Index

... but with df.rename() only the column name is renamed. Bug? I'm on version 0.12.0 9 Answers ...
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How can I force division to be floating point? Division keeps rounding down to 0?

... I want to calculate a / b , so if I use integer division I'll always get 0 with a remainder of a . 11 Answers ...