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AWS S3 copy files and folders between two buckets

... A simplified example using the aws-sdk gem: AWS.config(:access_key_id => '...', :secret_access_key => '...') s3 = AWS::S3.new s3.buckets['bucket-name'].objects['source-key'].copy_to('target-key') If you want to perform the copy between different buckets, then specify the target ...
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What do linkers do?

..., let's study a NASM x86-64 ELF Linux hello world: section .data hello_world db "Hello world!", 10 section .text global _start _start: ; sys_write mov rax, 1 mov rdi, 1 mov rsi, hello_world mov rdx, 13 syscall ; sys_exit ...
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Hidden features of Perl?

... Cool! !!$undef_var doesn't create a warning. – Axeman Oct 2 '08 at 20:40 4 ...
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How can I find and run the keytool

...n by myself as below quote. It works fine. "C:\Program Files\Java\jdk1.6.0_26\bin\keytool.exe" -exportcert -alias > sociallisting -keystore "D:\keystore\SocialListing" | > "C:\cygwin\bin\openssl.exe" sha1 -binary | "C:\cygwin\bin\openssl.exe" > base64 ...
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Getting All Variables In Scope

...omething along the lines of what KennyTM pointed out (for (var propName in ____)) since that will tell you what's available on various objects provided to you (this and arguments; if you're not sure what arguments they give you, you can find out via the arguments variable that's implicitly defined f...
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Add Variables to Tuple

... >>> from dis import dis >>> dis(f) 2 0 LOAD_CONST 1 (('foo', 'bar')) 2 STORE_FAST 0 (tuple1) 3 4 LOAD_FAST 0 (tuple1) 6 LOAD_CONST 3 (('baz',)) 8 BUILD_TUPL...
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Leading zeros for Int in Swift

...wn below in order to solve your problem. #1. Using String's init(format:_:) initializer Foundation provides Swift String a init(format:_:) initializer. init(format:_:) has the following declaration: init(format: String, _ arguments: CVarArg...) Returns a String object initialized by using ...
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Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)

...ing a mutex: // A class with implements RAII class lock { mutex &m_; public: lock(mutex &m) : m_(m) { m.acquire(); } ~lock() { m_.release(); } }; // A class which uses 'mutex' and 'lock' objects class foo { mutex mutex_; // mutex for l...
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Convert SVG image to PNG with PHP

...ck: $usmap = '/path/to/blank/us-map.svg'; $im = new Imagick(); $svg = file_get_contents($usmap); /*loop to color each state as needed, something like*/ $idColorArray = array( "AL" => "339966" ,"AK" => "0099FF" ... ,"WI" => "FF4B00" ,"WY" => "A3609B" ); foreach($i...
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What is C# analog of C++ std::pair?

...ect Here is my pair class public class Pair<X, Y> { private X _x; private Y _y; public Pair(X first, Y second) { _x = first; _y = second; } public X first { get { return _x; } } public Y second { get { return _y; } } public override bool E...