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Run cron job only if it isn't already running
... It's better.
Now you don't have to write the code yourself. Check out more reasons here: https://serverfault.com/a/82863
/usr/bin/flock -n /tmp/my.lockfile /usr/local/bin/my_script
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im...
Why does modern Perl avoid UTF-8 by default?
...nally useful in some sort of rare and isolated case. Unicode is much much more than just a larger character repertoire; it’s also how those characters all interact in many, many ways.
Even the simple-minded minimal measures that (some) people seem to think they want are guaranteed to miserably b...
How can I preview a merge in git?
...s to be that most people are looking for "the safe way". Strategy 2 is now more of a note that you can simply abort the merge if the merge has conflicts that you're not ready to deal with. Keep in mind if reading comments!]
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Why am I getting error for apple-touch-icon-precomposed.png
... I found a nice article that details everything I wanted to know (and more): mathiasbynens.be/notes/touch-icons
– Alexis
May 22 '13 at 15:02
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Bash: Strip trailing linebreak from output
...ce a single line of output. I have, however, updated my answer to suit the more general case. HTH.
– Steve
Dec 12 '14 at 0:32
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Meaning of acronym SSO in the context of std::string
... fixed at compile time, but the size of arrays from the free store is not. Moreover, the stack size is limited (typically a few MiB), whereas the free store is only limited by your system's memory.
SSO is the Short / Small String Optimization. A std::string typically stores the string as a pointer ...
from jquery $.ajax to angular $http
...rCallback);
There are number of things to notice:
AngularJS version is more concise (especially using .post() method)
AngularJS will take care of converting JS objects into JSON string and setting headers (those are customizable)
Callback functions are named success and error respectively (also...
How to disable back swipe gesture in UINavigationController on iOS 7
...r. Or, you can implement UIGestureRecognizerDelegate protocol with your more complex logic and set it as recognizer.delegate property.
– ArtFeel
Nov 25 '13 at 12:25
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Search code inside a Github project
...I, kept here for archive):
The search (based on SolrQuerySyntax) is now more permissive and the dreaded "Invalid search query. Try quoting it." is gone when using the default search selector "Everything":)
(I suppose we can all than Tim Pease, which had in one of his objectives "hacking on impro...