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OSGi: What are the differences between Apache Felix and Apache Karaf?

... The 'lightweight OSGi container' label is contrasting Karaf with more feature rich OSGi containers, not with Felix. To quote Guillaume Nodet (Karaf's author) from here: Felix is just the OSGi core runtime. Karaf provides a "distribution" based on Felix by adding other features such as...
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How to find gaps in sequential numbering in mysql?

... I'm not even working for that company anymore, but this is the best answer I've seen and it's definitely worth remembering for future reference. Thanks! – EmmyS May 19 '11 at 14:12 ...
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How to have the cp command create any necessary folders for copying a file to a destination [duplica

...chy, rsync can do it in one operation. I'm quite a fan of rsync as a much more versatile cp replacement, in fact: rsync -a myfile /foo/bar/ # works if /foo exists but /foo/bar doesn't. bar is created. share | ...
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Why can't I do ?

...ox extensions and IE extensions can access local resources. Chrome is much more restrictive. share | improve this answer | follow | ...
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Best way to check for “empty or null value”

...trim() call is (comparatively) expensive - and just not necessary. I added more about char(n) and "empty string". – Erwin Brandstetter May 20 '14 at 19:42 1 ...
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JavaScript get clipboard data on paste event (Cross browser)

...-) Could you please describe that designMode and selection thing a little more, especially in step 3? Thanks a lot! – Alex Feb 1 '10 at 14:07 5 ...
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How to extract a floating number from a string [duplicate]

....findall("\d+\.\d+", "Current Level: 13.4 db.") ['13.4'] may suffice. A more robust version would be: >>> re.findall(r"[-+]?\d*\.\d+|\d+", "Current Level: -13.2 db or 14.2 or 3") ['-13.2', '14.2', '3'] If you want to validate user input, you could alternatively also check for a float ...
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Simulate airplane mode in iPhone Simulator

...; it would almost certainly need kernel support to get it. You could do it more easily for NSURLConnection and its kin, but it could be more confusing if some calls work and some don't. – Rob Napier Dec 2 '09 at 14:09 ...
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How to articulate the difference between asynchronous and parallel programming?

...ed by frameworks that use such lower level mechanisms (async) to implement more complex centralized interactions. share | improve this answer | follow | ...
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what is reverse() in Django

...or you to edit dumb typos in other people's answers yourself so if you see more just jump in :-) – scytale Jun 28 '12 at 20:08 3 ...