A systems administrator is checking the system logs. The administrator wants to look at the last 20 lines of a log. Which of the following will execute the command?
The correct command to look at the last 20 lines of a log is tail -n 20.
The tail command is used to display the last part of a file, and the -n option is used to specify the number of lines to display. In this case, the administrator wants to display the last 20 lines of the log, so the correct command is tail -n 20.
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