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How to use if - else structure in a batch file?

I have a question about if - else structure in a batch file. Each command runs individually, but I couldn't use "if - else" blocks safely so these parts of my programme doesn't work. How can I do make these parts run? Thank you. ...
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How to add multiple files to Git at the same time

... git commit -a is shorthand for git commit --all, so yes, it will. – dax Jul 12 '16 at 15:15 1 ...
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Streaming via RTSP or RTP in HTML5

...er.com/path/to/stream"> Your browser does not support the VIDEO tag and/or RTP streams. </video> or maybe <video src="http://myserver.com:1935/path/to/stream/myPlaylist.m3u8"> Your browser does not support the VIDEO tag and/or RTP streams. </video> That said, the imple...
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Javascript Confirm popup Yes, No button instead of OK and Cancel

Javascript Confirm popup, I want to show Yes, No button instead of OK and Cancel. 9 Answers ...
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How to install Boost on Ubuntu

I'm on Ubuntu, and I want to install Boost. I tried with 7 Answers 7 ...
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Should I size a textarea with CSS width / height or HTML cols / rows attributes?

... I recommend to use both. Rows and cols are required and useful if the client does not support CSS. But as a designer I overwrite them to get exactly the size I wish. The recommended way to do it is via an external stylesheet e.g. textarea { widt...
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In Java, what is the best way to determine the size of an object?

...f data, but I want to make sure that I don't read in too many rows of data and cause OutOfMemoryError s. Each row translates into an object. Is there an easy way to find out the size of that object programmatically? Is there a reference that defines how large primitive types and object reference...
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Map enum in JPA with fixed values?

...m using JPA. I especially want to set the integer value of each enum entry and to save only the integer value. 9 Answers ...
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How to read multiple text files into a single RDD?

I want to read a bunch of text files from a hdfs location and perform mapping on it in an iteration using spark. 10 Answers...
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Node: log in a file instead of the console

... Update 2013 - This was written around Node v0.2 and v0.4; There are much better utilites now around logging. I highly recommend Winston Update Late 2013 - We still use winston, but now with a logger library to wrap the functionality around logging of custom objects and fo...