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Get local IP address

...lowing effect: it sets the destination for Send/Recv, discards all packets from other addresses, and - which is what we use - transfers the socket into "connected" state, settings its appropriate fields. This includes checking the existence of the route to the destination according to the system's r...
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A cron job for rails: best practices?

...sts..." EdiListener.process_new_messages puts "done." end To execute from the command line, this is just "rake cron". This command can then be put on the operating system cron/task scheduler as desired. Update this is quite an old question and answer! Some new info: the heroku cron service ...
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How Do I Fetch All Old Items on an RSS Feed?

...y reason that Google Reader has more information is that it remembered it from when it came up the first time. There is some information on something like this talked about as an extension to the ATOM protocol, but I don't know if it is actually implemented anywhere. ...
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Cache busting via params

...ates a query string, and the browser will therefore think it is a new path from, say, ?v=1.0. Thus causing it to load from file, not from cache. As you want. And, the browser will assume that the source will stay the same next time you call ?v=1.123 and should cache it with that string. So it will...
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Accessing dict keys like an attribute?

...he "cons" list, this combines the namespace of stored keys (which may come from arbitrary and/or untrusted data!) with the namespace of builtin dict method attributes. For example: d = AttrDict() d.update({'items':["jacket", "necktie", "trousers"]}) for k, v in d.items(): # TypeError: 'list' obje...
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How to stop text from taking up more than 1 line?

Is there a word-wrap or any other attribute that stops text from wrapping? I have a height, and overflow:hidden , and the text still breaks. ...
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How do you unit test a Celery task?

...erialization issues or any other distribution, comunication problem. So: from celery import Celery celery = Celery() @celery.task def add(x, y): return x + y And your test: from nose.tools import eq_ def test_add_task(): rst = add.apply(args=(4, 4)).get() eq_(rst, 8) Hope that ...
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Double decimal formatting in Java

...ause of the default language used by your JVM, which is probably different from those of Nambari. Have a look at NumberFormat javadoc : docs.oracle.com/javase/1.4.2/docs/api/java/text/… – Michael Zilbermann Oct 9 '12 at 18:54 ...
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Save modifications in place with awk

... important caveat here: the 'seen' array will fill up with duplicate lines from ALL the files included in the command. So if each file has e.g. a common header, that will be removed in every file after the first one. If you instead want to treat each file independently, you'll need to do something l...
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Unable to copy ~/.ssh/id_rsa.pub

...ointing out Windows' clip.exe (and you have to type the ".exe") can be run from the bash shell. share | improve this answer | follow | ...