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Subtract two variables in Bash
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You just need a little extra whitespace around the minus sign, and backticks:
COUNT=`expr $FIRSTV - $SECONDV`
Be aware of the exit status:
The exit status is 0 if EXPRESSION is neither null nor 0, 1 if EXPRESSION is null or 0.
Keep this in mind when using the expression in a bash sc...
In Ruby how do I generate a long string of repeated text?
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Indeed, very weird, look how different and elegant looks in Python: str = "0" * 999999 ;)
– tokland
Nov 16 '16 at 19:38
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JSON, REST, SOAP, WSDL, and SOA: How do they all link together
Currently doing some exams and I'm struggling through some concepts. These have all been 'mentioned' in my notes really but I didn't really understand how they all linked together. As far as my understanding is:
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Fling gesture detection on grid layout
I want to get fling gesture detection working in my Android application.
18 Answers
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How to use BigInteger?
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@thecoshman - You are quite correct and the number of upvotes on your comment show this is wise advice for all readers of such questions. Some more wise advice is "read what others wrote before answering or commenting." For example in this case it doesn't even ...
OSError: [Errno 2] No such file or directory while using python subprocess in Django
...tate "the use of shell=True is strongly discouraged in cases where the command string is constructed from external input", see link in the answer.
– valid
Nov 12 '14 at 4:01
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How to send HTTP request in java? [duplicate]
In Java, How to compose a HTTP request message and send it to a HTTP WebServer?
9 Answers
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Using Python 3 in virtualenv
...irtualenv --no-site-packages python3.4' worked. --distribute is deprecated and -p doesn't seem necessary since virtualenv uses python3.
– alkopop79
Nov 10 '17 at 13:04
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What are the most useful Intellij IDEA keyboard shortcuts? [closed]
...imilar to Jeff's post on Visual Studio shortcuts ( Visual Studio .NET 2003 and 2005 Keyboard Shortcuts ), but didn't really spot anything that helped. Hopefully the answers to this question will fill the void.
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What is the { get; set; } syntax in C#?
I am learning ASP.NET MVC and I can read English documents, but I don't really understand what is happening in this code:
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