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Shell command to sum integers, one per line?
... going to be adding anything exceeding 2^31 (2147483647). See comments for more background. One suggestion is to use printf rather than print:
awk '{s+=$1} END {printf "%.0f", s}' mydatafile
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What is a coroutine?
...epts are similar to each other. The idea of passing control between two or more things is very similar.
– steviejay
Aug 8 '17 at 17:44
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Create unique constraint with null columns
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Is it more efficient to copy a vector by reserving and copying, or by creating and swapping? [duplic
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Why shouldn't I use PyPy over CPython if PyPy is 6.3 times faster?
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NOTE: PyPy is more mature and better supported now than it was in 2013, when this question was asked. Avoid drawing conclusions from out-of-date information.
PyPy, as others have been quick to mention, has tenuous support for C extens...
Get current directory name (without full path) in a Bash script
...f '%s\n' "${PWD##*/}" # to print to stdout
# ...more robust than echo for unusual names
# (consider a directory named -e or -n)
printf '%q\n' "${PWD##*/}" # to print to stdout, quoted for use as shell input
# ...use...
Why do you create a View in a database?
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I think point 3 is more of stop gap than anything else. Eventually when you get round to updating the legacy code, you'll not only have to change the code behind the view but also all the code that have been built on top of the view. My 2cents
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Add a tooltip to a div
...venting the user from knowing whether a highlighted word will 1) give them more information or 2) take them to another page entirely. In general, bad practice.
– sscirrus
Apr 14 '14 at 22:33
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Should I use `this` or `$scope`?
...story ...
$scope is the "classic" technique while "controller as" is much more recent (as of version 1.2.0 officially though it did appear in unstable pre-releases prior to this).
Both work perfectly well and the only wrong answer is to mix them in the same app without an explicit reason. Frankly...
Learning Regular Expressions [closed]
...stand how the building blocks work, differences in syntax amount to little more than mild dialects. A layer on top of your regular expression engine's syntax is the syntax of the programming language you're using. Languages such as Perl remove most of this complication, but you'll have to keep in mi...