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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 "${@:1:2}" notation is expanded to the...
Ruby Metaprogramming: dynamic instance variable names
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edited Feb 6 '13 at 4:22
amacy
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answered Jul 19 '11 at 2...
What is the difference between svg's x and dx attribute?
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answered Oct 1 '13 at 22:52
Scott CameronScott Cameron
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What are -moz- and -webkit-? [duplicate]
... proprietary CSS features, prior to final clarification/definition by the W3.
This allows properties to be set specific to each individual browser/rendering engine in order for inconsistencies between implementations to be safely accounted for. The prefixes will, over time, be removed (at least in ...
How to save the output of a console.log(object) to a file?
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313
Update:
You can now just right click
Right click > Save as in the Console panel to save...
How do you create optional arguments in php?
...your definition of the parameters:
function dosomething($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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Useful GCC flags for C
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answered Jul 31 '10 at 1:35
cafcaf
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