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How can I troubleshoot my Perl CGI script?
...ng the warnings pragma to all of your files:
use warnings;
If you need more information than the short warning message, use the diagnostics pragma to get more information, or look in the perldiag documentation:
use diagnostics;
Did you output a valid CGI header first?
The server is expectin...
Changing git commit message after push (given that no one pulled from remote)
...t to specify the branch name when you push --force, otherwise you may push more than you expected.
– user693960
Mar 12 '13 at 0:25
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Recursive Lock (Mutex) vs Non-Recursive Lock (Mutex)
...d originally took the mutex. In many cases, this type of "mutex" is really more of a semaphore action, where you are not necessarily using the mutex as an exclusion device but use it as synchronization or signaling device between two or more threads.
Another property that comes with a sense of owne...
C++: what regex library should I use? [closed]
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Escape a string for a sed replace pattern
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Warning: This does not consider newlines. For a more in-depth answer, see this SO-question instead. (Thanks, Ed Morton & Niklas Peter)
Note that escaping everything is a bad idea. Sed needs many characters to be escaped to get their special meaning. For example, if yo...
How do I get a file extension in PHP?
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POST data to a URL in PHP
...swer because people usually come to stackoverflow for an answer not to get more questions.
– Stefan Fabian
Sep 13 '16 at 8:21
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What is the difference between Non-Repeatable Read and Phantom Read?
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Which @NotNull Java annotation should I use?
I'm looking to make my code more readable as well as use tooling like IDE code inspection and/or static code analysis (FindBugs and Sonar) to avoid NullPointerExceptions. Many of the tools seem incompatible with each others' @NotNull / @NonNull / @Nonnull annotation and listing all of them in my ...
Putting a simple if-then-else statement on one line [duplicate]
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That's more specifically a ternary operator expression than an if-then, here's the python syntax
value_when_true if condition else value_when_false
Better Example: (thanks Mr. Burns)
'Yes' if fruit == 'Apple' else 'No'
Now wit...