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UNIX Weekend Crash Course by Arthur Griffith

PANIC! UNIX System Crash Dump Analysis Handbook (Bk/CD-ROM) by Chris Drake

Unix Powertools [With CDROM]

Unix Backup & Recovery [With CD-ROM] by Preston, W. Curtis

XML Weekend Crash Course [With CDROM] by Ethier, Kay; Houser, Alan

Guide to UNIX Using Linux [With CDROM] by Palmer, Michael

SQL Weekend Crash Course [With CDROM] by Taylor, Allen G.