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How can I list (ls) the 5 last modified files in a directory?

I know ls -t will list all files by modified time. But how can I limit these results to only the last n files? 5 Answe...
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Call by name vs call by value in Scala, clarification needed

As I understand it, in Scala, a function may be called either 16 Answers 16 ...
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mvn clean install vs. deploy vs. release

... The clean, install and deploy phases are valid lifecycle phases and invoking them will trigger all the phases preceding them, and the goals bound to these phases. mvn clean install This command invokes the clean phase and then the in...
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How is the default max Java heap size determined?

...fault using the -Xms command-line option. maximum heap size: Smaller of 1/4th of the physical memory or 1GB. Before J2SE 5.0, the default maximum heap size was 64MB. You can override this default using the -Xmx command-line option. UPDATE: As pointed out by Tom Anderson in his c...
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django 1.5 - How to use variables inside static tag

I'm currently migrating all the static files references in my project to the new {% static %} tag that django 1.5 introduced, but I'm having a problem, in some places I use variables to get the content. With the new tag I can't, is there any way to solve this? ...
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How to add an object to an array

... First of all, there is no object or array. There are Object and Array. Secondly, you can do that: a = new Array(); b = new Object(); a[0] = b; Now a will be an array with b as its only element. ...
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jQuery find parent form

... In HTML5, there is a new 'form' attribute which allows you to have the element outside the parent form. This should be checked first. – mcintyre321 Aug 4 '15 at 11:00 ...
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What is non-blocking or asynchronous I/O in Node.js?

... Synchronous vs Asynchronous Synchronous execution usually refers to code executing in sequence. Asynchronous execution refers to execution that doesn't run in the sequence it appears in the code. In the following example, the synchronous operation causes the alerts to fire in s...
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How to show “Done” button on iPhone number pad

...oad { [super viewDidLoad]; UIToolbar* numberToolbar = [[UIToolbar alloc]initWithFrame:CGRectMake(0, 0, 320, 50)]; numberToolbar.barStyle = UIBarStyleBlackTranslucent; numberToolbar.items = @[[[UIBarButtonItem alloc]initWithTitle:@"Cancel" style:UIBarButtonItemStyleBordered target:se...
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Removing list of vms in vagrant cache

...s untouched, though. Meaning one still has to unregister and delete it manually. The very simple thing should be that vagrant does its job properly when given $ vagrant destroy -f <id> – silverdr Dec 14 '15 at 16:04 ...