The lpr and sort utilities accept input either from a file named on the command line or from standard input.
a. Name two other utilities that function in a similar manner.
b. Name a utility that accepts its input only from standard input.
a. cat, grep, and uniq
b. tr and xargs
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An administrator is attempting an OS upgrade on a VM disk that is stored on a SAN. In the event of a failure, the administrator wants to ensure the system can return to a working state in the shortest amount of time possible. Which of the following backup methods would BEST accomplish this?
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