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How to get the directory of the currently running file?
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What is the difference between PS1 and PROMPT_COMMAND
...as a command to execute before
the printing of each primary prompt ($PS1).
I never used it, but I could have used this back when I only had sh.
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Android: how to check if a View inside of ScrollView is visible?
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How to kill a child process after a given timeout in Bash?
...t already installed otherwise use sudo apt-get install coreutils)
timeout 10 ping www.goooooogle.com
If you don't want to download something, do what timeout does internally:
( cmdpid=$BASHPID; (sleep 10; kill $cmdpid) & exec ping www.goooooogle.com )
In case that you want to do a timeout ...
How to find out how many lines of code there are in an Xcode project?
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Are Swift variables atomic?
...al keywords (similar to @lazy) might be introduced later on.
Update 07/20/15: according to this blogpost on singletons swift environment can make certain cases thread safe for you, i.e.:
class Car {
static let sharedCar: Car = Car() // will be called inside of dispatch_once
}
private let shar...