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→Redirection (Standard Input, Standard Output, Standard Error)
===Redirection (Standard Input, Standard Output, Standard Error)===
<i>'''Standard streams''' are preconnected Redirection'''can be defined as changing the way from where commands read input and to where commands sends output communication channels''' between a computer program and its environment when it begins execution. The three input/output (I/O) connections are called '''standard <br>You can redirect input''' ('''stdin'''), '''standard output''' ('''stdout''') and '''standard error''' ('''stderr'''). Originally I/O happened via a physically connected system console (input via keyboard, output via monitor), but standard streams '''abstract''' this. When �of a command is executed via an interactive shell, the streams are typically connected to the text terminal on which the shell is running, but can be changed with '''redirection''' or a '''pipeline'''. ''</i>
Reference: https://en.wikipedia.org/wiki/Standard_streams
