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mkdir's “-p” option

...p created both, hello and goodbye This means that the command will create all the directories necessaries to fulfill your request, not returning any error in case that directory exists. About rlidwka, Google has a very good memory for acronyms :). My search returned this for example: http://www.cs...
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Reference assignment operator in PHP, =&

...rror changes made to another, instead of copying the existing data. It's called assignment by reference, which, to quote the manual, "means that both variables end up pointing at the same data, and nothing is copied anywhere". The only thing that is deprecated with =& is "assigning the result ...
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Python pandas Filtering out nan from a data selection of a column of strings

... Just drop them: nms.dropna(thresh=2) this will drop all rows where there are at least two non-NaN. Then you could then drop where name is NaN: In [87]: nms Out[87]: movie name rating 0 thg John 3 1 thg NaN 4 3 mol Graham NaN 4 lob N...
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How does __proto__ differ from constructor.prototype?

... I've been trying to wrap my head around this recently and finally came up with this "map" that I think sheds full light over the matter http://i.stack.imgur.com/KFzI3.png I know I'm not the first one making this up but it was more interesting figuring it out that finding it :-). An...
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Select records from NOW() -1 Day

... MySQL statement to order records (through a date stamp) by >= NOW() -1 so all records from the day before today to the future are selected? ...
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“git pull” or “git merge” between master and development branches

...nges. I need to merge changes from master into develop , but will eventually merge everything from develop into master . I have two different workflows in mind: ...
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Return from lambda forEach() in java

...ching player from the (ordered) stream but simply any matching item. This allows for better efficiency when there's parallelism involved. share | improve this answer | follo...
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How to revert to origin's master branch's version of file

...hen: git checkout origin/master filename Assuming you want to blow away all commits from your branch (VERY DESTRUCTIVE): git reset --hard origin/master share | improve this answer | ...
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How to get all enum values in Java?

... yourEnums = YourEnumClass.class.getEnumConstants(); solved my problem of calling from a non-static method. – Jeremy Jul 21 '17 at 23:33 add a comment  |  ...
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Junit: splitting integration test and Unit tests

...hat sort of other solutions there might be apart from annotations or physically separating the classes.. share | improve this answer | follow | ...