z/OS V1R3.0 DFSMShsm Storage Administration Reference Summary
IBM
z/OS V1R5.0 DFSORT: Getting Started
Platform RTM Version 9.1 4 Administering
GPFS 3.5: Documentation Collection
Absolute FreeBSD, 3rd Edition: The Complete Guide to FreeBSD
Michael W. Lucas
UNIX and Linux System Administration Handbook
Evi Nemeth & Garth Snyder & Trent R. Hein & Ben Whaley & Dan Mackin
Wicked Cool Shell Scripts, 2nd Edition: 101 Scripts for Linux, ...
Dave Taylor & Brandon Perry
The GNU Make Book
John Graham-Cumming
Absolute OpenBSD, 2nd Edition: UNIX for the Practical Paranoid
The Linux Command Line: A Complete Introduction
William E. Shotts, Jr.
FreeBSD Device Drivers: A Guide for the Intrepid
Joseph Kong
The Linux Programming Interface: A Linux and UNIX System Programming ...
Michael Kerrisk