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Add a new element to an array without specifying the index in Bash

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Understanding Linux /proc/id/maps

I am trying to understand my embedded Linux application's memory use. The /proc/pid/maps utility/file seems to be a good resource for seeing the details. Unfortunately I don't understand all the columns and entries. ...
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Python - json without whitespaces

I just realized that json.dumps() adds spaces in the JSON object 2 Answers 2 ...
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How to calculate time in hours between two dates in iOS

How can I calculate the time elapsed in hours between two times (possibly occurring on different days) in iOS? 5 Answers ...
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Why do we need argc while there is always a null at the end of argv?

It seems that the argv[argc] is always NULL , so I think we can traverse the argument list without argc . A single while loop will do this. ...
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C++0x lambda capture by value always const?

Is there any way to capture by value, and make the captured value non-const? I have a library functor that I would like to capture & call a method that is non-const but should be. ...
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Python: One Try Multiple Except

In Python, is it possible to have multiple except statements for one try statement? Such as : 1 Answer ...
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Viewing full version tree in git

I am using the command line version of Git and gitk. I want to see the full version tree, not just the part that is reachable from the currently checked out version. Is it possible? ...
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Rails mapping array of hashes onto single hash

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Remove 'a' from legend when using aesthetics and geom_text

How can I can remove the letter 'a' from the legend generated by this code? If I remove the geom_text , then the 'a' letter will not show in the legend. I want to keep geom_text , though. ...