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How would I get a cron job to run every 30 minutes?
...to add a crontab entry to execute a script every 30 minutes, on the hour and 30 minutes past the hour or something close. I have the following, but it doesn't seem to run on 0.
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Can I get chrome-devtools to actually search all JS sources?
...want to search within content sources which are scripts used by extensions and the internal browser API, you enable it in the Settings of DevTools and then from any panel in DevTools you can type Ctrl + Shift + F or (on Mac) Options + Command + F (⌥⌘F) to search across all sources, snippets, and...
is_file or file_exists in PHP
...rk to work, you should add clearstatcache(); since the results for is_file and file_exists are cached throughout the script. Anyways file_exists() is a bit slower, but shouldn't make any difference unless you perform around 100K file checks. php.net/manual/en/function.clearstatcache.php
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Why doesn't Objective-C support private methods?
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The answer is... well... simple. Simplicity and consistency, in fact.
Objective-C is purely dynamic at the moment of method dispatch. In particular, every method dispatch goes through the exact same dynamic method resolution point as every other method dispatch. At...
How to stop a JavaScript for loop?
I'm using this JavaScript to iterate through an array and find a matching array element:
4 Answers
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How can I add an ampersand for a value in a ASP.net/C# app config file value
... a C# program with values in a config file. What I want is to store ampersands for an url value like...
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in_array multiple values
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Intersect the targets with the haystack and make sure the intersection is precisely equal to the targets:
$haystack = array(...);
$target = array('foo', 'bar');
if(count(array_intersect($haystack, $target)) == count($target)){
// all of $target is in $haysta...
How to get the parents of a Python class?
...cked when resolving a method (or, actually, any other attribute -- methods and other attributes live in the same namespace in Python, after all;-).
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disable maven download progress indication
...rg.slf4j.simpleLogger.log property as documented here.
Using only the command line, you can do this:
mvn -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn -B ...
Or you can use the MAVEN_OPTS environment variable as described here:
export MAVEN_OPTS=-Dor...
Linux, Why can't I write even though I have group permissions?
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Did you logout and log back in after making the group changes? See:
Super User answer involving touch permissions failure
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