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Sorting data based on second column of a file
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346
You can use the sort command:
sort -k2 -n yourfile
-n, --numeric-sort compare according to s...
How to prevent http file caching in Apache httpd (MAMP)
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321
+50
Tried t...
Getting an empty JQuery object
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edited Jun 23 '11 at 5:44
answered May 22 '09 at 11:03
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How do I convert an interval into a number of hours with postgres?
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321
Probably the easiest way is:
SELECT EXTRACT(epoch FROM my_interval)/3600
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Is a Python dictionary an example of a hash table?
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edited Jun 26 '15 at 3:13
zvyn
62688 silver badges1616 bronze badges
answered Sep 22 '08 at 13:23
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How to set username and password for SmtpClient object in .NET?
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308
The SmtpClient can be used by code:
SmtpClient mailer = new SmtpClient();
mailer.Host = "mail...
Automatically expanding an R factor into a collection of 1/0 indicator variables for every factor le
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131
Use the model.matrix function:
model.matrix( ~ Species - 1, data=iris )
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How can I split a shell command over multiple lines when using an IF statement?
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edited Jul 13 at 16:27
answered Sep 3 '13 at 19:22
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Replacing some characters in a string with another character
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340
echo "$string" | tr xyz _
would replace each occurrence of x, y, or z with _, giving A__BC__...