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FreeBSD: Delete User Account Command

How do I remove the tom user under FreeBSD operating system using command line options?
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Linux: Delete / Remove User Account

How do I remove a user's access from my server? How do I delete a user account under Linux operating systems?
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FreeBSD Prevent Users From Seeing Information About Processes Owned by Other Users

Many commands accepts username and passwords on the command line and ps, top, sockstat and many commands can display this information to all users on the system. How do I prevent users from seeing information about processes that are being run under another UID to avoid information leakage under FreeBSD operating systems?
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