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Reliable way for a Bash script to get the full path to itself [duplicate]
...ry to run this script from a PIPE it will not work
wget -o /dev/null -O - http://host.domain/dir/script.sh |bash
Technically speaking, it is undefined. Practically speaking, there is no sane way to detect this. (A co-process can not access the environment of the parent.)
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How do I perform the SQL Join equivalent in MongoDB?
How do I perform the SQL Join equivalent in MongoDB?
19 Answers
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What does cherry-picking a commit with Git mean?
...h, where hash is a commit hash from other branch.
For full procedure see: http://technosophos.com/2009/12/04/git-cherry-picking-move-small-code-patches-across-branches.html
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Evil Mode best practice? [closed]
...hink you'll find every instance of keymapping in my keymapping config file https://github.com/mbriggs/.emacs.d-oldv2/blob/master/init/init-keymaps.el
Keep in mind, I am rebinding stuff that real emacs users would consider heresy, so YMMV if you ever want to learn "real" emacs (I really don't).
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How do you rotate a two dimensional array?
Inspired by Raymond Chen's post , say you have a 4x4 two dimensional array, write a function that rotates it 90 degrees. Raymond links to a solution in pseudo code, but I'd like to see some real world stuff.
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How can I negate the return-value of a process?
I'm looking for a simple, but cross-platform negate -process that negates the value a process returns. It should map 0 to some value != 0 and any value != 0 to 0, i.e. the following command should return "yes, nonexistingpath doesn't exist":
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Linux: copy and create destination dir if it does not exist
...can do this with the --parents flag of cp. From the info page (viewable at http://www.gnu.org/software/coreutils/manual/html_node/cp-invocation.html#cp-invocation or with info cp or man cp):
--parents
Form the name of each destination file by appending to the target
directory a slash a...
UIView Infinite 360 degree rotation animation?
I'm trying to rotate a UIImageView 360 degrees, and have looked at several tutorials online. I could get none of them working, without the UIView either stopping, or jumping to a new position.
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How do I get the number of elements in a list?
Consider the following:
9 Answers
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Relatively position an element without it taking up space in document flow
... original position by default if you don't specify "left", "bottom", etc.
http://css-tricks.com/absolute-positioning-inside-relative-positioning/
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