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How do I measure execution time of a command on the Windows command line?

Is there a built-in way to measure execution time of a command on the Windows command line? 30 Answers ...
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Twitter oAuth callbackUrl - localhost development

Is anyone else having a difficult time getting Twitters oAuth's callback URL to hit their localhost development environment. Apparently it has been disabled recently. http://code.google.com/p/twitter-api/issues/detail?id=534#c1 ...
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Boolean Field in Oracle

Yesterday I wanted to add a boolean field to an Oracle table. However, there isn't actually a boolean data type in Oracle. Does anyone here know the best way to simulate a boolean? Googling the subject discovered several approaches ...
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Python assigning multiple variables to same value? list behavior

I tried to use multiple assignment as show below to initialize variables, but I got confused by the behavior, I expect to reassign the values list separately, I mean b[0] and c[0] equal 0 as before. ...
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How can I convert a DateTime to the number of seconds since 1970?

I'm trying to convert a C# DateTime variable to Unix time, ie, the number of seconds since Jan 1st, 1970. It looks like a DateTime is actually implemented as the number of 'ticks' since Jan 1st, 0001. ...
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How do you add swap to an EC2 instance?

I'm currently running an ec2 micro instance and i've been finding that the instance occasionally runs out of memory. 10 Ans...
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How to split a delimited string into an array in awk?

How to split the string when it contains pipe symbols | in it. I want to split them to be in array. 9 Answers ...
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Pandas percentage of total with groupby

This is obviously simple, but as a numpy newbe I'm getting stuck. 14 Answers 14 ...
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How to add a new row to an empty numpy array

Using standard Python arrays, I can do the following: 6 Answers 6 ...
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Generate a Hash from string in Javascript

I need to convert strings to some form of hash. Is this possible in JavaScript? 22 Answers ...