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sed or awk: delete n lines following a pattern

How would I mix patterns and numeric ranges in sed (or any similar tool - awk for example)? What I want to do is match certain lines in a file, and delete the next n lines before proceeding, and I want to do that as part of a pipeline. ...
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Why does pthread_cond_wait have spurious wakeups?

... operations. In the following comp.programming.threads discussion, he expands on the thinking behind the design: Patrick Doyle wrote: > In article , Tom Payne wrote: > >Kaz Kylheku wrote: > >: It is so because implementations can sometimes not avoid inserting > >: the...
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Getting random numbers in Java [duplicate]

I would like to get a random value between 1 to 50 in Java. 2 Answers 2 ...
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How do I monitor the computer's CPU, memory, and disk usage in Java?

... you use the SIGAR API. I use the SIGAR API in one of my own applications and it is great. You'll find it is stable, well supported, and full of useful examples. It is open-source with a GPL 2 Apache 2.0 license. Check it out. I have a feeling it will meet your needs. Using Java and the Sigar ...
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Difference between single and double quotes in Bash

In Bash, what are the differences between single quotes ( '' ) and double quotes ( "" )? 6 Answers ...
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What is the purpose of “&&” in a shell command?

As far as I know, using & after the command is for running it in the background. 9 Answers ...
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Will the Garbage Collector call IDisposable.Dispose for me?

The .NET IDisposable Pattern implies that if you write a finalizer, and implement IDisposable, that your finalizer needs to explicitly call Dispose. This is logical, and is what I've always done in the rare situations where a finalizer is warranted. ...
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How do you allow spaces to be entered using scanf?

... People (and especially beginners) should never use scanf("%s") or gets() or any other functions that do not have buffer overflow protection, unless you know for certain that the input will always be of a specific format (and perhaps ...
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Undefined, unspecified and implementation-defined behavior

What is undefined behavior in C and C++? What about unspecified behavior and implementation-defined behavior? What is the difference between them? ...
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Is this a “good enough” random algorithm; why isn't it used if it's faster?

I made a class called QuickRandom , and its job is to produce random numbers quickly. It's really simple: just take the old value, multiply by a double , and take the decimal part. ...