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Convert absolute path into relative path given a current directory using Bash
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It's a pity that the package is outdated on Ubuntu 14.04 and does not have the --relative-to option.
– kzh
Jul 21 '16 at 15:18
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What is the difference between a port and a socket?
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Summary
A TCP socket is an endpoint instance defined by an IP address and a port in the context of either a particular TCP connection or the listening state.
A port is a virtualisation identifier defining a service endpoint (as distinct from a service instance endpoint aka session identifier)...
CSS Box Shadow - Top and Bottom Only [duplicate]
...examples of how to do this, but how can I add a box shadow only to the top and bottom of an element?
5 Answers
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Useful code which uses reduce()? [closed]
...uses reduce() function in python? Is there any code other than the usual + and * that we see in the examples?
24 Answers
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COUNT(*) vs. COUNT(1) vs. COUNT(pk): which is better? [duplicate]
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Bottom Line
Use either COUNT(field) or COUNT(*), and stick with it consistently, and if your database allows COUNT(tableHere) or COUNT(tableHere.*), use that.
In short, don't use COUNT(1) for anything. It's a one-trick pony, which rarely does what you want, and in those ...
Should I use multiplication or division?
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Thanks for the tip on using the time command for benchmarking!
– Edmundito
Oct 22 '08 at 17:11
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Normalize data in pandas
Suppose I have a pandas data frame df :
5 Answers
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Maximum and Minimum values for ints
I am looking for minimum and maximum values for integers in python. For eg., in Java, we have Integer.MIN_VALUE and Integer.MAX_VALUE . Is there something like this in python?
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javascript find and remove object in array based on key value
...g several approaches on how to find an object in an array, where ID = var, and if found, remove the object from the array and return the new array of objects.
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Factors in R: more than an annoyance?
... data types in R is factors. In my experience factors are basically a pain and I never use them. I always convert to characters. I feel oddly like I'm missing something.
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