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Shell command to sum integers, one per line?
I am looking for a command that will accept (as input) multiple lines of text, each line containing a single integer, and output the sum of these integers.
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How to convert a string to lower case in Bash?
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The are various ways:
POSIX standard
tr
$ echo "$a" | tr '[:upper:]' '[:lower:]'
hi all
AWK
$ echo "$a" | awk '{print tolower($0)}'
hi all
Non-POSIX
You may run into portability issues with the following examples:
Bash 4.0
$ echo "${a,,}"
hi all...
Difference between int[] array and int array[]
...d to help C programmers get used to java.
int[] array is much preferable, and less confusing.
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How to sort a list of objects based on an attribute of the objects?
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No problem. btw, if muhuk is right and it's a list of Django objects, you should consider his solution. However, for the general case of sorting objects, my solution is probably best practice.
– Triptych
Dec 31 '08 at 17:...
Why is super.super.method(); not allowed in Java?
I read this question and thought that would easily be solved (not that it isn't solvable without) if one could write:
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Proper way to make HTML nested list?
...o HTML5 ol.
The description list (HTML5 dl) is similar, but allows both dt and dd elements.
More Notes:
dl = definition list.
ol = ordered list (numbers).
ul = unordered list (bullets).
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OWIN Startup Class Missing
...through Nuget still getting the same issue. I'm using Visual Studio 2012 and MVC4 .
19 Answers
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How to serialize a TimeSpan to XML
I am trying to serialize a .NET TimeSpan object to XML and it is not working. A quick google has suggested that while TimeSpan is serializable, the XmlCustomFormatter does not provide methods to convert TimeSpan objects to and from XML.
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UITableView - change section header color
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Post a separate question and we'll try to help. Include source code.
– Alex Reynolds
Apr 9 '13 at 7:29
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Best way to assert for numpy.array equality?
I want to make some unit-tests for my app, and I need to compare two arrays. Since array.__eq__ returns a new array (so TestCase.assertEqual fails), what is the best way to assert for equality?
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