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1:	What is the file descriptor used for stderr? 1 2 3
2:	The symbol used to append to a file when redirecting stdout to that file is: > >> < 2>
3:	When you redirect both stdout and stderr to the same location, you use: 2&> 2&>1 2>&1 1>&2
4:	A pipe is used to: send output of one command to the input of another command filter certain data from the output of a command reorder output of a command all of the above
5:	Which is not true? Pipes can be used with redirection symbols. Pipes cannot be used when stdin redirection is used in a command. It is possible to redirect all stdin, stdout, and stderr at the same time. The tee command sends output of a command to two locations.

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