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Run cron job only if it isn't already running

...'s just a shell script: #!/bin/sh if ps -ef | grep -v grep | grep doctype.php ; then exit 0 else /home/user/bin/doctype.php >> /home/user/bin/spooler.log & #mailing program /home/user/bin/simplemail.php "Print spooler was not running... Restarted." ...
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PHPUnit: assert two arrays are equal, but order of elements not important

... Craig, you're close to what I tried originally. Actually array_diff is what I needed, but it doesn't seem to work for objects. I did write my custom assertion as explained here: phpunit.de/manual/current/en/extending-phpunit.html – koen ...
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How to check if an object is a list or tuple (but not string)?

... Python with PHP flavor: def is_array(var): return isinstance(var, (list, tuple)) share | improve this answer | ...
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Automatic Retina images for web sites

... There is a new attribute for the img tag that allows you to add a retina src attribute, namely srcset. No javascript or CSS needed, no double loading of images. <img src="low-res.jpg" srcset="high-res.jpg 2x"> Browser Support: http://caniuse.com/#search=srcset O...
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How can I find the data structure that represents mine layout of Minesweeper in memory?

...n. I've found this MSDN article on a simple WinDbg command that reveals all the mines but it is old, is not explained in any detail and really isn't what I'm looking for. ...
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Make .gitignore ignore everything except a few files

...han the root dir won't be found anyway. I'm using this now (with *.pl) and all *.pl files are being ignored even though there are many in the subdirectories below the .gitignore file – PandaWood Nov 6 '11 at 1:44 ...
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How can I use grep to show just filenames on Linux?

... Nice, I personally like using this with other flags grep -nrl "some text" . when looking for text in a set of subfolders recursively – openwonk Jun 25 '19 at 6:33 ...
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What is the best place for storing uploaded images, SQL database or disk file system? [closed]

I'm writing an application that allows users to upload images onto the server. I expect about 20 images per day all jpeg and probably not edited/resized. (This is another question, how to resize the images on the server side before storing. Maybe someone can please drop a .NET resource for that in t...
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Eclipse doesn't highlight references anymore

...icon on the toolbar - it toggles "Mark Occurrences". You probably accidentally pressed it when trying to select a menu item at some point. I had a friend who did that with the "show selected element only" toolbar button... You can either press it again or configure as Rytmis says. ...
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Send message to specific client with socket.io and node.js

..."I'm the master", function() { // Save the socket id to Redis so that all processes can access it. client.set("mastersocket", socket.id, function(err) { if (err) throw err; console.log("Master socket is now" + socket.id); }); }); socket.on("message to master", function(...