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Bash variable scope

...he while loop. Now this child process has its own copy of the environment and can't pass any variables back to its parent (as in any unix process). Therefore you'll need to restructure so that you're not piping into the loop. Alternatively you could run in a function, for example, and echo the val...
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What is the difference between bottom-up and top-down?

...namic programming) consists in first looking at the "smaller" subproblems, and then solve the larger subproblems using the solution to the smaller problems. ...
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What is “(program)” in Chrome debugger’s profiler?

...w parts of JavaScript in project I'm currently working on do end up there, and the only way I can get there in debugger is by placing "debugger;" into the code, which is not quite comfortable. – Jaroslav Záruba Jun 19 '12 at 12:37 ...
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Tracking the script execution time in PHP

... On unixoid systems (and in php 7+ on Windows as well), you can use getrusage, like: // Script start $rustart = getrusage(); // Code ... // Script end function rutime($ru, $rus, $index) { return ($ru["ru_$index.tv_sec"]*1000 + intval($ru["...
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how to get first three characters of an NSString?

... I'm very new and I searched for this question to try to answer my own, but won't this answer take out the first 3 characters? I use that same syntax to REMOVE the number of characters you set. I'm probably wrong, but thought I should at l...
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Find the files that have been changed in last 24 hours

...ed in the last 24 hours (last full day) in a particular specific directory and its sub-directories: find /directory_path -mtime -1 -ls Should be to your liking The - before 1 is important - it means anything changed one day or less ago. A + before 1 would instead mean anything changed at least o...
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Apache POI Excel - how to configure columns to be expanded?

... Just wanted to point out that autoSizeColumn does not scale well and will be super slow if you have lots of rows. I had to get a little hacky and do something similar to what was suggested in this question. – lbstr Apr 17 '14 at 20:17 ...
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How to display an unordered list in two columns?

...tely for IE support you will need a code solution that involves JavaScript and dom manipulation. This means that anytime the contents of the list changes you will need to perform the operation for reordering the list into columns and reprinting. The solution below uses jQuery for brevity. http://js...
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What is causing this error - “Fatal error: Unable to find local grunt”

...ed the old version of grunt first, then I installed the new grunt version, and then I got this error: 13 Answers ...
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Time complexity of Sieve of Eratosthenes algorithm

...risron What is the problem? It's not the case that "asymptotic complexity" and "amortized complexity" are two different kinds of the same thing. Amortization is just a technique for more carefully counting something, which can happen to be the asymptotic complexity. – Shreevats...