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find: missing argument to -exec
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A -exec command must be terminated with a ; (so you usually need to type \; or ';' to avoid interpretion by the shell) or a +. The difference is that with ;, the command is called once per file, with +, it is called just as few times as possible (usually once, but there is a maxi...
What's the difference of “./configure” option “--build”, “--host” and “--target”?
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As noted in this blog post and alluded to in the GCC Configure Terms, --target only applies when you are compiling toolchains. When you are doing normal cross-compilation of a library or binary you use
--build=the architecture of the build machine
--hos...
Setting environment variables on OS X
... extensive research and if you want to set variables that are available in all GUI applications, your only option is /etc/launchd.conf.
Please note that environment.plist does not work for applications launched via Spotlight. This is documented by Steve Sexton here.
Open a terminal prompt
Type su...
Rails detect if request was AJAX
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edited Jul 10 '15 at 16:46
answered Nov 22 '11 at 1:08
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Is there a numpy builtin to reject outliers from a list
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Numpy index slice without losing dimension information
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It's probably easiest to do x[None, 10, :] or equivalently (but more readable) x[np.newaxis, 10, :].
As far as why it's not the default, personally, I find that constantly having arrays with singleton dimensions gets annoying very quickly. I'd guess the nump...
SQL - Update multiple records in one query
...e updated so it's just u need to add the parent id and child ids to update all the rows u need using a small script.
UPDATE [Table]
SET couloumn1= (select couloumn1 FROM Table WHERE IDCouloumn = [PArent ID]),
couloumn2= (select couloumn2 FROM Table WHERE IDCouloumn = [PArent ID]),
co...
What are some popular naming conventions for Unit Tests? [closed]
... for the name, rather than searching the name and then filter out test manually by eyes. It's a small distinction, but it's much easier to "test [class name]" and have only one pop up and reduce mental load
– THIS USER NEEDS HELP
Jan 31 '19 at 18:49
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Finding index of character in Swift String
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edited Jan 4 '19 at 10:26
Eugene
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answered Jun 5...
What is the proper #include for the function 'sleep()'?
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edited Dec 10 '19 at 10:16
Daniel Selvan
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answered F...