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How to copy a file to multiple directories using the gnu cp command
...esktop to all users desktop I first had to sudo su (didn't work otherwise) then used: echo /home/*/Desktop/ | xargs -n 1 cp -av /home/myusername/Desktop/file.
– David G
Dec 10 '14 at 23:40
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How to detect escape key press with pure JS or jQuery?
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}
if (isEscape) {
alert("Escape");
}
};
Click me then press the Escape key
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Convert duration to hours:minutes:seconds (or similar) in Rails 3 or Ruby
...Time.utc.strftime works only for values when total number of hours is less then 24:
2.2.2 :004 > Time.at(60 * 60).utc.strftime('%H h %M m')
=> "01 h 00 m"
For greater values it returns incorrect results:
2.2.2 :006 > Time.at(60 * 60 * 24).utc.strftime('%H h %M m')
=> "00 h 00 m"
I...
Centering a view in its superview using Visual Format Language
...n when explicitly having two separate VFL strings for both axes (H:|V:). I then started to try and isolate exactly when the options do get applied to the VFL. They appear to not apply to the superview in the VFL and will only apply to any explicit views that are mentioned in the VFL string (which is...
Getting values from query string in an url using AngularJS $location
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If your $location.search() is not working, then make sure you have the following:
1) html5Mode(true) is configured in app's module config
appModule.config(['$locationProvider', function($locationProvider) {
$locationProvider.html5Mode(true);
}]);
2) <base hr...
Java Logging vs Log4J [closed]
...rom another subset of classes get logged to a file on network drive A; and then all messages from everywhere get logged to a file on network drive B"? And do you see yourself tweaking it every couple of days?
If you can answer yes to any of the above questions, go with Log4j. If you answer a defin...
Java Ordered Map
...it required that key class have to implement Comparable interface. If not, then some kind of RuntimeException will be thrown. TreeMap it's also sorted map, but I think author want to use just ordered (not sorted) map. LinkedHashMap it's good choice to get only ordered map (as You said, "determined b...
Java ArrayList copy
...is assume that destination.size() is at least as big as source.size(), and then copy the range index-by-index using the set(int,E) method. The method doesn't add new elements to the destination. Refer to the source code if it's not clear enough from the Javadoc.
– Radiodef
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Remove all classes that begin with a certain string
...on the div. I want to be able to clear all classes with a given prefix and then add a new one. If I want to remove all of the classes that begin with "bg", how do I do that? Something like this, but that actually works:
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AddRange to a Collection
...ssary (slower). With AddRange, the collection will be set the capacity and then added the items (faster). This extension method will be extremely slow, but will work.
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