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How can I get the current user's username in Bash?
...current terminal (ignores EUID)
$USER variable is set correctly only after reading profile files (for example, /etc/profile)
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How to allow to accept only image files?
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you can use accept attribute for <input type="file"> read this docs http://www.w3schools.com/tags/att_input_accept.asp
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Semantic Issue: Property's synthesized getter follows Cocoa naming convention for returning 'owned'
...t return an object owned by the caller can be confusing for other people reading your code.
For the record, Apple have published Transitioning to ARC Release Notes, in which they state:
You cannot give a property a name that begins with new or copy.
They’ve already been notified that the...
Using context in a fragment
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I was reading this Google blog on memory leaks...android-developers.blogspot.com/2009/01/… . If I use the getActivity() method would the app not be at risk of memory leaks? The blog suggests "Try using the context-application ins...
Recursive search and replace in text files on Mac and Linux
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For more info about this command read this lifehacker.com/5810026/…
– kuzdu
Sep 26 '18 at 14:41
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What's the best way to generate a UML diagram from Python source code? [closed]
...ith a tool named Pyreverse that draws UML diagrams from the python code it reads. Pyreverse uses graphviz as a backend.
It is used like this:
pyreverse -o png -p yourpackage .
where the . can also be a single file.
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The type or namespace name could not be found [duplicate]
...pace PrjTest
{
public class Foo
{
// etc...
}
}
Read more about namespaces on MSDN:
Using Namespaces
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Live-stream video from one android phone to another over WiFi
...ptor. Implementing MediaDataSource would allow you to do your own network reading and buffering, without writing to a temp file.
– Alex I
Feb 15 '17 at 10:15
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Checking to see if a DateTime variable has had a value assigned
...t compile-time you can tell that it isn't definitely assigned by trying to read from it :)
I suspect you really want Nullable<DateTime> (or DateTime? with the C# syntactic sugar) - make it null to start with and then assign a normal DateTime value (which will be converted appropriately). Then...
How to join multiple lines of file names into one with custom delimiter?
... version of paste I tried requires a "-" argument at the end to tell it to read from STDIN. e.g. ls -1 | paste -s -d ":" - Not sure if that's universal with all versions of paste
– Andy White
May 10 '12 at 16:15
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