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{{short description|External instruction to a computer program}}
{{redirect distinguish|System command|system call}}
{{other uses|Command (disambiguation)#Computing{{!}}Command
{{refimprove|date=May 2008 }}
In [[computing]], a '''command''' is an instruction received via an external [[Interface (computing)|interface]] that directs the behavior of a [[computer program]]. Commonly, commands are sent to a program via a [[command-line interface]], a [[scripting language|script]], a [[network protocol]], or as an event triggered in a [[graphical user interface]].
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