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How do BitTorrent magnet links work?

... I used a magnet link . Curious about how it works, I looked up the specs and didn't find any answers. The wiki says xt means "exact topic" and is followed by the format ( btih in this case) with a SHA1 hash. I saw base32 mentioned, knowing it's 5 bits per character and 32 characters, I found it...
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Count the items from a IEnumerable without iterating?

Let's say I want iterate on those and write something like processing #n of #m. 19 Answers ...
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What is a MIME type?

I have been reading about how to build plug-ins and this "MIME type" keeps getting discussed in it. I have tried to look into it and know that it is Multipurpose Internet Mail Extensions (MIME) but no suitable explanation of how it relates to browser plug-ins, as in what I need to know about it for ...
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“Insert if not exists” statement in SQLite

... If you have a table called memos that has two columns id and text you should be able to do like this: INSERT INTO memos(id,text) SELECT 5, 'text to insert' WHERE NOT EXISTS(SELECT 1 FROM memos WHERE id = 5 AND text = 'text to insert'); If a record already contains a row where ...
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Maximum number of records in a MySQL database table

...utoincrement field. What would happen if I add milions of records? How to handle this kind of situations? Thx! 8 Answers ...
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How do I move a file (or folder) from one folder to another in TortoiseSVN?

...er within the same repository without having to use Repo Browser to do it, and without creating two independent add/delete operations. Using Repo Browser works fine except that your code will be hanging in a broken state until you get any supporting changes checked in afterwards (like the .csproj f...
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Parse usable Street Address, City, State, Zip from a string [closed]

...s in a normalized table. I need to do this for approximately 4,000 records and it needs to be repeatable. 24 Answers ...
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REST API Token-based Authentication

... Let me seperate up everything and solve approach each problem in isolation: Authentication For authentication, baseauth has the advantage that it is a mature solution on the protocol level. This means a lot of "might crop up later" problems are already ...
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Twitter Bootstrap - add top space between rows

...otstrap is a bad idea, because this is a core part of the page scaffolding and you will need rows without a top margin. To solve this, instead create a new class "top-buffer" that adds the standard margin that you need. .top-buffer { margin-top:20px; } And then use it on the row divs where you...
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Check if passed argument is file or directory in Bash

...n Ubuntu which would allow me to pass it either a filename or a directory, and be able to do something specific when it's a file, and something else when it's a directory. The problem I'm having is when the directory name, or probably files too, has spaces or other escapable characters are in the n...