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Getting the count of unique values in a column in bash
I have tab delimited files with several columns. I want to 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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How can I “unuse” a namespace?
One of the vagaries of my development system (Codegear C++Builder) is that some of the auto-generated headers insist on having...
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Format a date using the new date time API
I was playing with the new date time API but when running this:
3 Answers
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Delete all documents from index/type without deleting type
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I believe if you combine the delete by query with a match all it should do what you are looking for, something like this (using your example):
curl -XDELETE 'http://localhost:9200/twitter/tweet/_query' -d '{
"query" : {
"match_all" : {}
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Detect when a window is resized using JavaScript ?
Is there any way with jQuery or JavaScript to trigger a function when the user ends to resize the browser window?
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Controlling the screenshot in the iOS 7 multitasking switcher
I've been trying to find some information regarding the new multitasking switcher in iOS 7 and especially the screenshot that the OS takes when the app is going into hibernation.
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Can you get DB username, pw, database name in Rails?
I'm writing a rake task that does some DB work outside of Rails/ActiveRecord.
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Proper use of beginBackgroundTaskWithExpirationHandler
I'm a bit confused about how and when to use beginBackgroundTaskWithExpirationHandler .
5 Answers
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Variable number of arguments in C++?
How can I write a function that accepts a variable number of arguments? Is this possible, how?
17 Answers
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How to draw border around a UILabel?
Is there a way for UILabel to draw a border around itself? This is useful for me to debug the text placement and to see the placement and how big the label actually is.
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