Unix systems programming the file /var/log/wtmp contains the recent login/logout activity for all the users. As this is not an ascii file, you need to use the last command to view the contents. Your supervisor requires a list of everyone who has logged in and out again between 1000 to 1500. Write a minimal Unix command using grep to accomplish this.

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You can use the last command along with grep and awk to achie... View the full answer