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An example of how to use getopts in bash

...ng, you need to add p: to the argument list Basically : after the option means it requires the argument. The basic syntax of getopts is (see: man bash): getopts OPTSTRING VARNAME [ARGS...] where: OPTSTRING is string with list of expected arguments, h - check for option -h without parame...
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Redefine tab as 4 spaces

... It depends on what you mean. Do you want actual tab characters in your file to appear 4 spaces wide, or by "tab" do you actually mean an indent, generated by pressing the tab key, which would result in the file literally containing (up to) 4 space ...
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How to add a button dynamically in Android?

How to add a button dynamically in Android? 17 Answers 17 ...
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HttpURLConnection timeout settings

...w an IllegalArgumentException if the value is negative (a value of 0 would mean wait indefinitely). Since the timeout is an unsigned 32bit int, I would guess the max timeout would be about 49 days (though I seriously doubt this such a value would be helpful to anyone). – Jay Si...
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ASP.NET MVC: Is Controller created for every request?

...ed it worked". If it sometimes does not work like that from some reason it mean a bug. – Rasto Mar 24 '11 at 21:58 6 ...
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Fragment or Support Fragment?

...the actual target OS supports it). Which, in case you are using ViewPager, means that you have to use adapters from v13 support library, otherwise you can't have both viewpager and flipping animation. – GSerg Apr 28 '14 at 11:55 ...
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Why do I get a “Null value was assigned to a property of primitive type setter of” error message whe

...he primitive type from the getter. Ex: private Integer num; public void setNum(Integer i) { this.num = i; } public int getNum() { return this.num; } But in most cases you will want to return the wrapper class. So either set your DB column to not allow nulls, or use a wrapper ...
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How do I fetch a single model in Backbone?

...e; return base + (base.charAt(base.length - 1) == '/' ? '' : '/') + this.id; }, This approach assumes that you have implemented controllers with the hashbang in your URL like so, http://www.mydomain.com/#clocks/123 , but it should work even if you haven't yet. ...
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sys.argv[1] meaning in script

...lists and strings as you're familiarizing yourself with Python, but in the meantime, here are a few things to know. You can simply create a script that prints the arguments as they're represented. It also prints the number of arguments, using the len function on the list. from __future__ import pr...
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How to create a new database using SQLAlchemy?

...OperationalError: server closed the connection unexpectedly This probably means the server terminated abnormally before or while processing the request. – Guus Feb 7 '19 at 15:34 ...