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What's a concise way to check that environment variables are set in a Unix shell script?
...ssion? https://github.com/koalaman/shellcheck/issues/380#issuecomment-145872749
The gist of the discussion is:
… However, when I shellcheck it (with version 0.4.1), I get this message:
In script.sh line 13:
: ${FOO:?"The environment variable 'FOO' must be set and non-empty"}
^-- SC2086: Doubl...
Cocoa: What's the difference between the frame and the bounds?
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12 Answers
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Windows 7, 64 bit, DLL problems
I have a problem with our executable. I'm running this C++ 32-bit executable on my Windows 7 64-bit development box that also has all those Microsoft applications (Visual Studio 2008 + 2010, TFS, SDK, Microsoft Office)...
And it's still running just fine.
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Why is Java's SimpleDateFormat not thread-safe? [duplicate]
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SimpleDateFormat stores intermediate results in instance fields. So if one instance is used by...
How do I remove a key from a JavaScript object? [duplicate]
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2306
The delete operator allows you to remove a property from an object.
The following examples...
How to sort an ArrayList in Java [duplicate]
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424
Use a Comparator like this:
List<Fruit> fruits= new ArrayList<Fruit>();
Fruit fru...
git status shows modifications, git checkout — doesn't remove them
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Delete file from internal storage
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edited Sep 10 '18 at 6:22
Leandro Keen Zapa
1161111 bronze badges
answered Mar 30 '11 at 13:01
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Cached, PHP generated Thumbnails load slowly
...e requests.
Second, when I load your page, I see most of the blocking (~1.25s) on all.js. I see that begins with (an old version of) jQuery. You should reference that from the Google CDN, to not only decrease load time, but potentially avoid an HTTP request for it entirely.
Specifically, the mos...
What does “DAMP not DRY” mean when talking about unit tests?
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Ian Ringrose
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answered Aug 7 '12 at 1:02
Chris EdwardsChris Edwards
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