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Rails server says port already used, how to kill that process?
... 3000 (which is what webrick normally uses), type this in your terminal to find out the PID of the process:
$ lsof -wni tcp:3000
Then, use the number in the PID column to kill the process:
$ kill -9 PID
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How to call a shell script from python code?
How to call a shell script from python code?
12 Answers
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How can I truncate a double to only two decimal places in Java?
...isplay a truncated 3.545555555 to 3.54, but rounded to 3.55. DecimalFormat.setRoundingMode() needs to be set to RoundingMode.FLOOR;
– Christian García
Jan 7 '13 at 13:26
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How to ensure a form field is submitted when it is disabled?
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This is the one I settled on, mainly because it's the least obtrusive.
– Jonathan
Jan 16 '13 at 6:02
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How do I initialize a byte array in Java?
I have to store some constant values (UUIDs) in byte array form in java, and I'm wondering what the best way to initialize those static arrays would be. This is how I'm currently doing it, but I feel like there must be a better way.
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Read error response body in Java
In Java, this code throws an exception when the HTTP result is 404 range:
8 Answers
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Send email using the GMail SMTP server from a PHP page
...rt = Swift_SmtpTransport::newInstance('smtp.gmail.com', 465, "ssl")
->setUsername('GMAIL_USERNAME')
->setPassword('GMAIL_PASSWORD');
$mailer = Swift_Mailer::newInstance($transport);
$message = Swift_Message::newInstance('Test Subject')
->setFrom(array('abc@example.com' => 'ABC'))...
In JavaScript, why is “0” equal to false, but when tested by 'if' it is not false by itself?
The following shows that "0" is false in Javascript:
12 Answers
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JSON to pandas DataFrame
What I am trying to do is extract elevation data from a google maps API along a path specified by latitude and longitude coordinates as follows:
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Finding duplicate rows in SQL Server
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You'll get lots of dupes in the result set, so you'll have to deal with those too.
– Renan
May 9 '16 at 22:25
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