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How to set current working directory to the directory of the script in bash?
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#!/bin/bash
cd "$(dirname "$0")"
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How to remove an element from an array in Swift
... without the elements you want removed, e.g:
let pets = animals.filter { $0 != "chimps" }
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A regex to match a substring that isn't followed by a certain other substring
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.* any character except \n (0 or more times
(matching the most amount possible))
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bar 'bar'
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Fluid width with equally spaced DIVs
...*display:inline; zoom:1 fixes inline-block for IE6/7, see here.
font-size: 0; line-height: 0 fixes a minor issue in IE6.
#container {
border: 2px dashed #444;
height: 125px;
text-align: justify;
-ms-text-justify: distribute-all-lines;
text-justify: distribute-all-lines;
/* ju...
Are there console commands to look at whats in the queue and to clear the queue in Sidekiq?
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I haven't ever used Sidekiq, so it's possible that there are methods just for viewing the queued...
Read/write to Windows registry using Java
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330
I know this question is old, but it is the first search result on google to "java read/write to ...
Exit Shell Script Based on Process Exit Code
...ble so you would have something like:
ls -al file.ext
rc=$?; if [[ $rc != 0 ]]; then exit $rc; fi
You need to be careful of piped commands since the $? only gives you the return code of the last element in the pipe so, in the code:
ls -al file.ext | sed 's/^/xx: /"
will not return an error cod...
How do I check for null values in JavaScript?
... will check for empty strings (""), null, undefined, false and the numbers 0 and NaN
Please note that if you are specifically checking for numbers it is a common mistake to miss 0 with this method, and num !== 0 is preferred (or num !== -1 or ~num (hacky code that also checks against -1)) for funct...
What is the best way to test for an empty string in Go?
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10 Answers
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Make footer stick to bottom of page correctly [duplicate]
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