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How to copy Docker images from one host to another without using a repository
...new host do:
docker load < awesomesauce.tar
Now go have a coffee and read Hacker News...
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Where does Vagrant download its .box files to?
... the box_add function. Within the box_add function, there is a block that reads:
ensure
# Make sure we delete the temporary file after we add it,
# unless we were interrupted, in which case we keep it around
# so we can resume the download later.
if !@download_interrupted
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Can you grab or delete between parentheses in vi/vim?
... for "extended % matching" that you can find on the Vim homepage.
You can read the documentation on % and related motion commands by entering :help various-motions in command mode.
object-select
There is another set of motion commands that you can use in Visual mode to select various text objects...
Pure virtual function with implementation
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You'd have to give a body to a pure virtual destructor, for example :)
Read: http://cplusplus.co.il/2009/08/22/pure-virtual-destructor/
(Link broken, use archive)
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jQuery find events handlers registered with an object
....8, the event data is no longer available from the "public API" for data. Read this jQuery blog post. You should now use this instead:
jQuery._data( elem, "events" );
elem should be an HTML Element, not a jQuery object, or selector.
Please note, that this is an internal, 'private' structure, a...
Chrome doesn't delete session cookies
...an be caused by having Chrome set to Continue where you left off.
Further reading
Bug report: Chrome is not deleting temporary cookies – i.e. not logging me out automatically when I close all browser Windows
Issue 128513 in Chromium: Session Cookies not cleared when Chrome processes closed
Issue...
When would you use the different git merge strategies?
...projects where many branches have had independent development and it's all ready to come together into a single head.
An octopus branch merges multiple heads in one commit as long as it can do it cleanly.
For illustration, imagine you have a project that has a master, and then three branches to me...
optional local variables in rails partial templates: how do I get out of the (defined? foo) mess?
... resources on the subject: groups.google.com/group/comp.lang.ruby/browse_thread/thread/…
– hgmnz
Jan 13 '10 at 23:49
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object==null or null==object?
...elf certainly included) find the if (variable == constant) form to be more readable - it's a more natural way of expressing yourself. This is a reason not to blindly copy a convention from C. You should always question practices (as you're doing here :) before assuming that what may be useful in one...
Histogram using gnuplot?
...to create a histogram (just use "with boxes") in gnuplot if my .dat file already has properly binned data. Is there a way to take a list of numbers and have gnuplot provide a histogram based on ranges and bin sizes the user provides?
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