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How to extract text from a string using sed?
My example string is as follows:
5 Answers
5
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Is there a command to list all Unix group names? [closed]
... @zed cut is another command which extracts the specific column from an input. Here I'm extracting field 1 where fields are delimited by :
– Arpit
Feb 1 '17 at 10:40
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What would be C++ limitations compared C language? [closed]
...src src/core/kin_object.c -c -o obj/kin_object.o | wc -l
In file included from src/core/kin_object.c:22:
src/core/kin_object.h:791:28: error: anonymous variadic macros were introduced in C99
In file included from src/core/kin_object.c:26:
src/core/kin_log.h:42:42: error: anonymous variadic macros w...
Python None comparison: should I use “is” or ==?
...objects)
In other words, == is a check for equivalence (which is defined from object to object) whereas is checks for object identity:
lst = [1,2,3]
lst == lst[:] # This is True since the lists are "equivalent"
lst is lst[:] # This is False since they're actually different objects
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What is the difference between the HashMap and Map objects in Java?
...ce restricts you to only those methods unless you cast the collection back from Map to HashMap (which COMPLETELY defeats the purpose).
Often what you will do is create an object and fill it in using it's specific type (HashMap), in some kind of "create" or "initialize" method, but that method will ...
How do I get the last day of a month?
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@Henk Actually I pulled this from a place in our source that creates the DateTime from the lastDayOfMonth. Honestly either way works perfectly well. It's a pedantic argument which way is better. I've done it both ways and both yield the same answer.
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What does this Google Play APK publish error message mean?
...ying in Prod will be unpublished. So should i wait till it get unpublished from all Google Play Servers?
– Vikalp Patel
Jun 5 '14 at 10:45
4
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join list of lists in python [duplicate]
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import itertools
a = [['a','b'], ['c']]
print(list(itertools.chain.from_iterable(a)))
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How to push both value and key into PHP array
...n the 2 arrays contain values on the same key + operator ignores the value from second array (does not override), also it does not renumber/reindex the numeric keys...
– jave.web
Feb 16 '17 at 21:35
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How to cast Object to its actual type?
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In my case AutoMapper works well.
AutoMapper can map to/from dynamic objects without any explicit configuration:
public class Foo {
public int Bar { get; set; }
public int Baz { get; set; }
}
dynamic foo = new MyDynamicObject();
foo.Bar = 5;
foo.Baz = 6;
Mapper.Initializ...