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How can you diff two pipelines in Bash?
...az | quux) # or only use process substitution once
The 2nd version will more clearly remind you which input was which, by showing
-- /dev/stdin vs. ++ /dev/fd/63 or something, instead of two numbered fds.
Not even a named pipe will appear in the filesystem, at least on OSes where bash can impl...
Redirect Windows cmd stdout and stderr to a single file
... (stderr) to 1 (stdout). You can also hide messages by redirecting to NUL, more explanation and examples on MSDN.
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Calendar returns wrong month [duplicate]
...mode, the Joda-Time project also advises migration to java.time.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations.
Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport and further adapted to Android in ThreeTe...
What is the best way to measure execution time of a function? [duplicate]
...d DateTime.Now.After - DateTime.Now.Before but there must be something more sophisticated.
4 Answers
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PHP date yesterday [duplicate]
...terval('P1D'));
echo $date->format('F j, Y') . "\n";
Or in your case (more readable/obvious)
$date = new DateTime();
$date->add(DateInterval::createFromDateString('yesterday'));
echo $date->format('F j, Y') . "\n";
(Because DateInterval is negative here, we must add() it here)
See als...
What is the best way to conditionally apply a class?
...ry operator was not working within angular expressions in v0.9.x . This is more or less a switch.
– orcun
May 8 '12 at 9:25
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What's the difference between backtracking and depth first search?
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Backtracking is a more general purpose algorithm.
Depth-First search is a specific form of backtracking related to searching tree structures. From Wikipedia:
One starts at the root (selecting some node as the root in the graph case) and ...
How can I remove a commit on GitHub? [duplicate]
...me --force
See Git Magic Chapter 5: Lessons of History - And Then Some for more information (i.e. if you want to remove older commits).
Oh, and if your working tree is dirty, you have to do a git stash first, and then a git stash apply after.
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What are good examples of genetic algorithms/genetic programming solutions? [closed]
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Regular expression to allow spaces between words
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The above isn't exactly correct. Due to the fact that * means zero or more, it would match all of the following cases that one would not usually mean to match:
An empty string, "".
A string comprised entirely of spaces, " ".
A string that leads and / or trails with spaces, " H...