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How to go to each directory and execute a command?
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This answer posted by Todd helped me.
find . -maxdepth 1 -type d \( ! -name . \) -exec bash -c "cd '{}' && pwd" \;
The \( ! -name . \) avoids executing the command in current directory.
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What is the difference between a thread and a fiber?
...s the difference between a thread and a fiber? I've heard of fibers from ruby and I've read heard they're available in other languages, could somebody explain to me in simple terms what is the difference between a thread and a fiber.
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How to get an element by its href in jquery?
I want to get an element by its href attribute in jquery or javascript. Is that possible?
4 Answers
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How does delete[] “know” the size of the operand array?
...ch memory to deallocate". Yes, the memory block size is stored "somewhere" by malloc (normally in the block itself), so that's how free knows. However, new[]/delete[] is a different story. The latter basically work on top of malloc/free. new[] also stores the number of elements it created in the mem...
How to get active user's UserDetails
...of Spring-Security,
need to load your custom User Object from the Database by some information (like the login or id) stored in the principal or
want to learn how a HandlerMethodArgumentResolver or WebArgumentResolver can solve this in an elegant way, or just want to an learn the background behind @...
What's the best way to inverse sort in scala?
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There may be the obvious way of changing the sign, if you sort by some numeric value
list.sortBy(- _.size)
More generally, sorting may be done by method sorted with an implicit Ordering, which you may make explicit, and Ordering has a reverse (not the list reverse below)
You can do
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Filter output in logcat by tagname
I'm trying to filter logcat output from a real device (not an emulator) by tag name but I get all the messages which is quite a spam. I just want to read messages from browser which should be something like "browser: " or "webkit: " , but it doesn't work...
Here it is what I get:
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How do I control how Emacs makes backup files?
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If you've ever been saved by an Emacs backup file, you
probably want more of them, not less of them. It is annoying
that they go in the same directory as the file you're editing,
but that is easy to change. You can make all backup files go
into a di...
How to multiply duration by integer?
...ants have an adaptive type, based on how they are used. See this blog post by Rob Pike that explains it in detail: blog.golang.org/constants
– mna
Aug 28 '15 at 14:12
31
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Android: Rotate image in imageview by an angle
I am using the following code to rotate a image in ImageView by an angle. Is there any simpler and less complex method available.
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