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How to find Unused Amazon EC2 Security groups
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Note: this only considers security use in EC2, not other services like RDS. You'll need to do more work to include security groups used outside EC2. The good thing is you can't easily (might not even be possible) to delete active security groups if you miss one asso...
Why is this program erroneously rejected by three C++ compilers?
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How to create a MySQL hierarchical recursive query
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For MySQL 8+: use the recursive with syntax.
For MySQL 5.x: use inline variables, path IDs, or ...
How to do version numbers? [closed]
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[major].[minor].[release].[build]
major: Really a marketing decision. Are you ready to call t...
XPath query to get nth instance of an element
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Change the maximum upload file size
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answered Feb 2 '10 at 14:05
user229044♦user229044
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sed or awk: delete n lines following a pattern
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I'll have a go at this.
To delete 5 lines after a pattern (including the line with the pattern)...
Asynchronous shell commands
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Carl NorumCarl Norum
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Intersection and union of ArrayLists in Java
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