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Getting the count of unique values in a column in bash
... count the frequency of occurrence of the different values in a column for all the files in a folder and sort them in decreasing order of count (highest count first). How would I accomplish this in a Linux command line environment?
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What is Linux’s native GUI API?
...heir own APIs to handle windows, events and other OS stuff. I have never really got a clear answer as to what Linux’s equivalent is?
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List comprehension vs map
...ing map() over list comprehension or vice versa? Is either of them generally more efficient or considered generally more pythonic than the other?
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#include in .h or .c / .cpp?
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John BodeJohn Bode
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How to convert R Markdown to PDF?
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Rstudio - v 0.98.507
– Prradep
Jul 8 '16 at 12:06
Let us ...
Hidden Features of MySQL
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Since you put up a bounty, I'll share my hard won secrets...
In general, all the SQLs I tuned today required using sub-queries. Having come from Oracle database world, things I took for granted weren’t working the same with MySQL. And my reading on MySQL tuning makes me conclude that MySQL is be...
Maven: The packaging for this project did not assign a file to the build artifact
...ac 10.6.6. I have a JAR project and when I run the command "mvn clean install:install", I'm getting the error,
8 Answers
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convert String to DateTime
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DateTime.strptime allows you to specify the format and convert a String to a DateTime.
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Has Facebook sharer.php changed to no longer accept detailed parameters?
...pers are encouraged to use the more modern Share Dialog, which can perform all of the same functions as these older dialogs, but can additionally publish custom Open Graph stories without requiring Facebook Login. developers.facebook.com/docs/sharing/reference/share-dialog
– R...
What optimizations can GHC be expected to perform reliably?
...has a lot of optimizations that it can perform, but I don't know what they all are, nor how likely they are to be performed and under what circumstances.
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