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How to run cron job every 2 hours
How can I write a Crontab that will run my /home/username/test.sh script every 2 hours?
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What ports does RabbitMQ use?
... ports does RabbitMQ Server use or need to have open on the firewall for a cluster of nodes?
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How to remove space between axis & area-plot in ggplot2?
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What is IP address '::1'?
I was playing with sockets on local machine with no network connection. See below:
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how does array[100] = {0} set the entire array to 0?
How does the compiler fill values in char array[100] = {0}; ? What's the magic behind it?
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How to get default gateway in Mac OSX
I need to retrieve the default gateway on a Mac machine. I know that in Linux route -n will give an output from which I can easily retrieve this information. However this is not working in Mac OSX(Snow Leopard).
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Find the max of two or more columns with pandas
I have a dataframe with columns A , B . I need to create a column C such that for every record / row:
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What is the smallest possible valid PDF?
Out of simple curiosity, having seen the smallest GIF , what is the smallest possible valid PDF file?
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Canvas width and height in HTML5
Is it possible to fix the width and height of an HTML5 canvas element?
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C# Thread safe fast(est) counter
What is the way to obtain a thread safe counter in C# with best possible performance?
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