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How to output only captured groups with sed?
...e output as well as specifying what you do want.
string='This is a sample 123 text and some 987 numbers'
echo "$string" | sed -rn 's/[^[:digit:]]*([[:digit:]]+)[^[:digit:]]+([[:digit:]]+)[^[:digit:]]*/\1 \2/p'
This says:
don't default to printing each line (-n)
exclude zero or more non-digits
i...
printf with std::string?
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It's compiling because printf isn't type safe, since it uses variable arguments in the C sense1....
UITableViewHeaderFooterView: Unable to change background color
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answered Mar 24 '13 at 22:43
MattMatt
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Hide keyboard when scroll UITableView
...answer is subclassing UITableView (http://stackoverflow.com/questions/3499810/tapping-a-uiscrollview-to-hide-the-keyboard).
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Check/Uncheck checkbox with JavaScript (jQuery or vanilla)?
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How do I run a node.js app as a background service?
... own answer from How do I run a Node.js application as its own process?
2015 answer: nearly every Linux distro comes with systemd, which means forever, monit, PM2, etc are no longer necessary - your OS already handles these tasks.
Make a myapp.service file (replacing 'myapp' with your app's name,...
getting the last item in a javascript object
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14 Answers
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