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How can I get the current network interface throughput statistics on Linux/UNIX? [closed]

Tools such as MRTG provide network throughput / bandwidth graphs for the current network utilisation on specific interfaces, such as eth0. How can I return that information at the command line on Linux/UNIX? ...
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Quick Way to Implement Dictionary in C

One of the things which I miss while writing programs in C is a dictionary data structure. What's the most convenient way to implement one in C? I am not looking for performance, but ease of coding it from scratch. I don't want it to be generic either -- something like string->int will do. But I do ...
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Excluding directories in os.walk

I'm writing a script that descends into a directory tree (using os.walk()) and then visits each file matching a certain file extension. However, since some of the directory trees that my tool will be used on also contain sub directories that in turn contain a LOT of useless (for the purpose of thi...
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No line-break after a hyphen

I'm looking to prevent a line break after a hyphen - on a case-by-case basis that is compatible with all browsers. 5 Answ...
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Double vs. BigDecimal?

I have to calculate some floating point variables and my colleague suggest me to use BigDecimal instead of double since it will be more precise. But I want to know what it is and how to make most out of BigDecimal ? ...
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Generating a random password in php

I am trying to generate a random password in php. 22 Answers 22 ...
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inserting characters at the start and end of a string

I am new and trying to find a way to insert a number of L's at the beginning and end of a string. So if I have a string which says ...
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How can I output the value of an enum class in C++11

How can I output the value of an enum class in C++11? In C++03 it's like this: 7 Answers ...
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Return value in a Bash function

I am working with a bash script and I want to execute a function to print a return value: 9 Answers ...