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How to split a string in shell and get the last field

Suppose I have the string 1:2:3:4:5 and I want to get its last field ( 5 in this case). How do I do that using Bash? I tried cut , but I don't know how to specify the last field with -f . ...
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Converting integer to binary in python

... TrebledJ 6,23555 gold badges1919 silver badges4141 bronze badges answered May 2 '12 at 9:32 eumiroeumiro ...
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C++ preprocessor __VA_ARGS__ number of arguments

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Two versions of python on linux. how to make 2.7 the default

...ed by #! /usr/bin/env python. You can usually get away with running Python 2.6 scripts in 2.7, but do you want to risk it? On top of that, monkeying with /usr/bin can break your package manager's ability to manage packages. And changing the order of directories in your PATH will affect a lot of oth...
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How do I check if a string is unicode or ascii?

...Unicode characters. There is a bytes type that holds raw bytes. In Python 2, a string may be of type str or of type unicode. You can tell which using code something like this: def whatisthis(s): if isinstance(s, str): print "ordinary string" elif isinstance(s, unicode): pri...
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Check if all elements in a list are identical

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How do I replace NA values with zeros in an R dataframe?

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get list of pandas dataframe columns based on data type

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How do you downgrade rubygems?

I have rubygems 1.3.1 installed but I want to go back to 1.2.0. What's the command to downgrade rubygems? 6 Answers ...
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Regular Expression to reformat a US phone number in Javascript

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