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Redis cache vs using memory directly
..., various item eviction policies, blocking queues, pub/sub, atomicity, Lua scripting, etc ...
Redis can replicate its activity with a master/slave mechanism in order to implement high-availability.
Basically, if you need your application to scale on several nodes sharing the same data, then someth...
Is it possible to install another version of Python to Virtualenv?
... virtualenv environment relocatable.
This fixes up scripts and makes all .pth files
relative
--distribute Use Distribute instead of Setuptools. Set environ
variable VIRTUALENV_USE_DISTRIBUTE to make it the
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Get first key in a (possibly) associative array?
... not inefficient at all, feel free to use it!
Edit 2015-03-03:
Benchmark scripts have been requested, I don't have the original ones but made some new tests instead. This time I found the foreach only about twice as fast as reset/key. I used a 100-key array and ran each method a million times to g...
Find a Pull Request on Github where a commit was originally created
...nch B to master, Wednesday you merge branch A to master. If you used this script to do a search while on the master branch for which PR commit "X" was in, I'm pretty sure it'd incorrectly tell you branch B. Double check for yourself though.
– Jason Denney
Mar ...
How do I keep two side-by-side divs the same height?
...for cross-browser support. However it does work and it doesn't rely on javascript, so I'm going to mark it as correct. Thanks!
– NibblyPig
Jun 8 '10 at 14:15
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Text editor to open big (giant, huge, large) text files [closed]
...s. See the "less" section of the answer above.
Perl
Perl is good for quick scripts, and its .. (range flip-flop) operator makes for a nice selection mechanism to limit the crud you have to wade through.
For example:
$ perl -n -e 'print if ( 1000000 .. 2000000)' humongo.txt | less
This will extract ...
How to create a windows service from java app
... write --JvmOptions=-Dopt=a#-Dopt2=b. I was running the command from a ant script and struggle for days because of that. Hope it helps.
– Sydney
Mar 14 '12 at 15:25
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Getting pids from ps -ef |grep keyword
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Had to use the [k] trick on pgrep -f. My script was running in a subshell so I think it was picking up its parent command (hard to know for sure - the pid it returned was gone when the command was done executing!)
– ArtOfWarfare
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What's valid and what's not in a URI query?
..."&" characters in this manner.
Unfortunately many popular server-side scripting frameworks including ASP.NET do not support this usage.
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Why does IE9 switch to compatibility mode on my website?
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+1, this is a very valuable note. If you have <script>s inside <head> before this meta statement, it (IE=edge) will be ignored.
– jakub.g
Sep 28 '12 at 15:02
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