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Examen 202 : Networking Administration »
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Question 5/20
Explanation: The pipe symbol ( | ) is a command redirector. It is used to take the output of one
command and use it as input for another command. In this case, email sent to ‘msg’ is the output
which is piped (redirected) to /usr/local/msgfilter.
Reference: http://www.netti.hu/doc/LinuxShellScript/rpf.htm
Incorrect Answers
A: You need the pipe symbol to make the msgfilter program take the email as its input.
C: You need the pipe symbol to make the msgfilter program take the email as its input.
D: You need the pipe symbol to make the msgfilter program take the email as its input.
E: You need the pipe symbol to make the msgfilter program take the email as its input.