• comp.unix.admin (newsgroup)
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• comp.unix.bsd (category)
• comp.unix.cde (newsgroup)
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• comp.unix.osf (category)
• comp.unix.pc-clone (category)
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• comp.unix.sco (category)
• comp.unix.shell (newsgroup)
• comp.unix.solaris (newsgroup)
• comp.unix.sys3 (newsgroup)
• comp.unix.sys5 (category)
• comp.unix.ultrix (newsgroup)
• comp.unix.unixware (category)
• comp.unix.user-friendly (newsgroup)
• comp.unix.wizards (newsgroup)
• comp.unix.xenix (category)