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How to delete duplicate lines in a file without sorting it in Unix?
...at seen[$0] == 1 after the first time a line is found and then seen[$0] == 2, and so on.
Awk evaluates everything but 0 and "" (empty string) to true. If a duplicate line is placed in seen then !seen[$0] will evaluate to false and the line will not be written to the output.
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Capture Video of Android's Screen
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Android 4.4 (KitKat) and higher devices have a shell utility for recording the Android device ...
What does an exclamation mark mean in the Swift language?
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Is explicitly closing files important?
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In your example the file isn't guaranteed to be closed before the interpreter exits. In curren...
How to revert a Git Submodule pointer to the commit stored in the containing repository?
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answered Oct 24 '11 at 23:28
Brian RiehmanBrian Riehman
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When annotating a class with @Component, does this mean it is a Spring Bean and Singleton?
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How to hide databases that I am not allowed to access
...ku - Postgresql database via pgAdmin3 , It lists all the tables (about 2600). Every time I open the pgAdmin3 I have to find my own database.
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jQuery changing style of HTML element
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Use this:
$('#navigation ul li').css('display', 'inline-block');
Also, as others have state...