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How to delete duplicate lines in a file without sorting it in Unix?
...d, or use a wildcard… the 'seen' array will fill up with duplicate lines from ALL the files. If you instead want to treat each file independently, you'll need to do something like for f in *.txt; do gawk -i inplace '!seen[$0]++' "$f"; done
– Nick K9
Jan 17 '1...
startActivityForResult() from a Fragment and finishing child Activity, doesn't call onActivityResult
...called");
}
Call startActivityForResult(intent, HOMEWORK_POST_ACTIVITY); from FragmentA.Java
Call finish(); method in SecondActivity.java
Hope this will work.
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Creating a UIImage from a UIColor to use as a background image for UIButton [duplicate]
...rState:(UIControlState)state {
[self setBackgroundImage:[UIButton imageFromColor:backgroundColor] forState:state];
}
+ (UIImage *)imageFromColor:(UIColor *)color {
CGRect rect = CGRectMake(0, 0, 1, 1);
UIGraphicsBeginImageContext(rect.size);
CGContextRef context = UIGraphicsGetCurre...
How to retrieve a single file from a specific revision in Git?
...e syntax is indeed
git show object
git show $REV:$FILE
git show somebranch:from/the/root/myfile.txt
git show HEAD^^^:test/test.py
The command takes the usual style of revision, meaning you can use any of the following:
branch name (as suggested by ash)
HEAD + x number of ^ characters
The SHA1 hash...
How can I get nth element from a list?
...). Neat, huh?
Also, if your code relies on indexing (instead of consuming from the front of the list), lists may in fact not be the proper data structure. For O(1) index-based access there are more efficient alternatives, such as arrays or vectors.
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What is ApplicationException for in .NET?
...ications, not the common language runtime, throw custom exceptions derived from the ApplicationException class. The ApplicationException class differentiates between exceptions defined by applications versus exceptions defined by the system.
If you are designing an application that needs to create i...
Git branch strategy for small dev team [closed]
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You might benefit from the workflow Scott Chacon describes in Pro Git. In this workflow, you have two branches that always exist, master and develop.
master represents the most stable version of your project and you only ever deploy to produc...
Using GPU from a docker container?
I'm searching for a way to use the GPU from inside a docker container.
9 Answers
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What algorithm can be used for packing rectangles of different sizes into the smallest rectangle pos
...reat one to start with, as a comparison if nothing else.
Greedy placement from large to small.
Put the largest rectangle remaining into your packed area. If it can't fit anywhere, place it in a place that extends the pack region as little as possible. Repeat until you finish with the smallest rect...
Any tools to generate an XSD schema from an XML instance document? [closed]
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You can use an open source and cross-platform option: inst2xsd from Apache's XMLBeans. I find it very useful and easy.
Just download, unzip and play (it requires Java).
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