How to redirect standard error in bash

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I am trying to redirect bash message into file named output.log. But, it is not getting redirected. How do I redirect both standard output and standard error in bash shell? In Linux, how do I redirect error messages? Standard error (also known as stderr) is the default error output device. Use stderr to write all…

This should do <your_command> > out.log 2> error.log

Ex: ls out.log 2>error.log