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How to create named and latest tag in Docker?
Supposed I have an image that I want to tag as 0.10.24 (in my case it's an image containing Node.js 0.10.24). I built that image using a Dockerfile and executing docker build and by providing a tag using the -t parameter.
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eval command in Bash and its typical uses
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When does invoking a member function on a null instance result in undefined behavior?
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116
Both (a) and (b) result in undefined behavior. It's always undefined behavior to call a member...
ls command: how can I get a recursive full-path listing, one line per file?
...ath | awk '
/:$/&&f{s=$0;f=0}
/:$/&&!f{sub(/:$/,"");s=$0;f=1;next}
NF&&f{ print s"/"$0 }'
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How can I randomize the lines in a file using standard tools on Red Hat Linux?
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11 Answers
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What is the difference between Linq to XML Descendants and Elements
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Here is an example demonstrating the difference:
<?xml version="1.0" encoding="utf-8" ?>
<foo>
<bar>Test 1</bar>
<baz>
<bar>Test 2</bar>
</baz>
<bar>Test 3</bar>
</foo>
Code:
XDocument doc = XDocumen...
Displaying better error message than “No JSON object could be decoded”
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Getting value of public static final field/property of a class in Java via reflection
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133
First retrieve the field property of the class, then you can retrieve the value. If you know t...