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How do I get current date/time on the Windows command line in a suitable format for usage in a file/

... On my system %TIME% returns values like " 0:01:15" and " 3:15:12" and the %%a%%b code in the answer gives a leading space like " 001" and " 315". To get a four digit hhmm use this: For /f "tokens=1-2 delims=/: " %%a in ("%TIME%") do (if %%a LSS 10 (set mytime=0%%a%%b) else (s...
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How do I return multiple values from a function? [closed]

...ing library got the NamedTuple class to make named tuples easier to create and more powerful. Inheriting from typing.NamedTuple lets you use docstrings, default values, and type annotations. Example (From the docs): class Employee(NamedTuple): # inherit from typing.NamedTuple name: str id...
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Dynamically select data frame columns using $ and a character value

I have a vector of different column names and I want to be able to loop over each of them to extract that column from a data.frame. For example, consider the data set mtcars and some variable names stored in a character vector cols . When I try to select a variable from mtcars using a dynamic s...
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How to request Administrator access inside a batch file

....bat file. The desired behavior is that when they right-click on the file and say Open, they will get one of those UAC dialogs that makes the screen go dark and forces them to answer whether they want to give the application permission to run as administrator. Instead, they are just seeing "Access...
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SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”

My application is to be deployed on both tcServer and WebSphere 6.1. This application uses ehCache and so requires slf4j as a dependency. As a result I've added the slf4j-api.jar (1.6) jar to my war file bundle. ...
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Merging: Hg/Git vs. SVN

I often read that Hg (and Git and...) are better at merging than SVN but I have never seen practical examples of where Hg/Git can merge something where SVN fails (or where SVN needs manual intervention). Could you post a few step-by-step lists of branch/modify/commit/...-operations that show where S...
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How are the points in CSS specificity calculated

... Pekka's answer is practically correct, and probably the best way to think about the issue. However, as many have already pointed out, the W3C CSS recommendation states that "Concatenating the three numbers a-b-c (in a number system with a large base) gives the sp...
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Unpacking, extended unpacking and nested extended unpacking

...lain with a few examples. Since you're talking about evaluating these "by hand," I'll suggest some simple substitution rules. Basically, you might find it easier to understand an expression if all the iterables are formatted in the same way. For the purposes of unpacking only, the following substit...
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How to remove a key from Hash and get the remaining hash in Ruby/Rails?

... your five-minutes-of-editing are up, you can always copy, delete, modify, and repost a comment. – iconoclast May 13 at 23:17 add a comment  |  ...
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Git Extensions: Win32 error 487: Couldn't reserve space for cygwin's heap, Win32 error 0

...anyone, I moved the GitExtensions bit in my PATH to be the very first item and it seems to have resolved the issue for me. (I put the git/cmd itself 2nd - not sure if that was part of it). A bit easier than a reboot or .dll shuffling. – jinglesthula Dec 2 '16 ...