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How to change a command line argument in Bash?
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You have to reset all arguments. To change e.g. $3:
$ set -- "${@:1:2}" "new" "${@:4}"
Basically you set all arguments to their current values, except for the one(s) that you want to change. set -- is also specified by POSIX 7.
The "${@:1:2}" notation is expanded to the...
Ruby Metaprogramming: dynamic instance variable names
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edited Feb 6 '13 at 4:22
amacy
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answered Jul 19 '11 at 2...
What is the difference between svg's x and dx attribute?
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answered Oct 1 '13 at 22:52
Scott CameronScott Cameron
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AttributeError(“'str' object has no attribute 'read'”)
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edited Oct 13 '18 at 7:51
sideshowbarker
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Unix's 'ls' sort by name
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131
My ls sorts by name by default. What are you seeing?
man ls states:
List information about th...
How do you create optional arguments in php?
...your definition of the parameters:
function dosomething($var1, $var2, $var3 = 'somevalue'){
// Rest of function here...
}
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Rails 4: before_filter vs. before_action
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523
As we can see in ActionController::Base, before_action is just a new syntax for before_filter.
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The resulting API analysis is too large when upload app to mac store
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3 Answers
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Ignoring new fields on JSON objects using Jackson [duplicate]
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edited Nov 10 '16 at 13:12
Andrei Sfat
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answe...
Calculate distance between two points in google maps V3
How do you calculate the distance between two markers in Google maps V3? (Similar to the distanceFrom function inV2.)
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