z/OS UNIX Systems Services Introduction Virtual Classroom Live April 07, 2025

Course Overview

I. Introduction to z/OS UNIX System Services

• A. UNIX history
• B. Standards Organizations
• C. Standards
• D. z/OS UNIX® system services
• E. z/OS UNIX release history
• F. z/OS UNIX vs. S/390 Linux
• G. IBM products exploiting USS - TCP/IP
• H. IBM products exploiting USS - Java
• I. IBM products exploiting USS – Web
• J. IBM WebSphere Overview
• K. IBM products exploiting USS - Notes
• L. IBM products exploiting USS - Print
• M. z/OS UNIX serving PC files
• N. Third-party USS products
• O. Navigating the USS documentation
• P. Getting more USS help online

II. UNIX Essentials

• A. UNIX Command Overview
  • 1. File Mgmt
  • 2. File & Text Mgmt
  • 3. System Process Mgmt
  • 4. Storage Mgmt, TCP/IP
  • 5. Printing, Programming
• B. Logging In
• C. The Shell Prompt
• D. Changing your Password
• E. Logging Out
• F. Getting some files
• G. Commands, Switches, and Arguments
• H. Reading the Manual: the man cmd
• I. Userid, UID, Group, GID
• J. Understanding UNIX Permissions
• K. The UNIX File System
  • 1. Home and Working Directory
  • 2. Commands to List Contents of A File
  • 3. Head and tail Commands
  • 4. Copying and Moving Files
  • 5. Finding Files
  • 6. Deleting Files
  • 7. UNIX Filenames
  • 8. File Management Lab
  • 9. Creating Directories
  • 10. Removing Directories
  • 11. Copying Files Between Directories
  • 12. UNIX File Security: Permissions
  • 13. Working with Permissions
  •  14. Changing Permissions
  • 15. UNIX Directory Permissions
  • 16. Lab: chmod
  • 17. File/Dir Permissions - umask
  • 18. Changing File Ownership
  • 19. Under the covers of the File System
  • 20. Linking files
  • 21. Hard vs. Symbolic Links
  • 22. Linking to a file - ln
• L. UNIX Text Editors
  • 1. Editing Files with vi
  • 2. Modes
  • 3. Insert Mode
  • 4. Scrolling
  • 5. Editing
  • 6. Repeat n
  • 7. File cmds
  • 8. exrc
  • 9. vi: Lab
  • 10. vi: Regular Expressions
  • 11. vi: Searching for Text
  • 12. vi: Search Lab
  • 13. vi: Text Substitution
  • 14. vi: Text Substitution Lab
• M. The Shell
  • 1. Shell Variables
  • 2. Useful Shell Variables
  • 3. Command-line Editing
  • 4. Startup Script
  • 5. Shell Variables: Lab
  • 6. Redirection to & from Files
  • 7. Pipes
  • 8. Wildcards
  • 9. Wildcard Lab
  • 10. Command Alias
  • 11. Shell Scripts
  • 12. Shell Scripts - Example
  • 13. Shell Scripts - Exit Status
• N. UNIX Process Management
  • 1. the ps cmd
  • 2. Background
  • 3. Kill
  • 4. UNIX Process Mgmt Lab
  • 5. Job Control in the Shell
• O. UNIX Power Tools
  • 1. UNIX Power Tools: sort
  • 2. Archiving Files
  • 3. Compressing files
•  P. TCP/IP Networking
  • 1. Two Similar Packet Delivery Systems
  • 2. Packet Routing
  • 3. Network Physical Layer, IP Layer
  • 4. TCP/IP Port Numbers
  • 5. TCP/IP Services
  • 6. TCP/IP Diagnostic Commands
  • 7. TCP/IP Applications
  • 8. rsh, rexec
  • 9. ftp
  • 10. get & put, mget & mput
  • 11. (client) & ftpd (server)
  • 12. Example FTP Session
  • 13. Mail
  • 14. Write
  • 15. wall
  • 16. talk
  • 17. Scheduling Work w/ cron & at
  • 18. at
  • 19. cron
  • 20. cron table

III. Accessing UNIX System Services

• A. Accessing UNIX System Services
• B. Accessing USS with Telnet/Rlogin
  • 1. Moving Data
  • 2. Pro’s and Con’s of using Telnet/Rlogin
• C. Using OMVS to access z/OS
  • 1. OMVS & UNIX Differences
  • 2. Using OMVS
  • 3. OMVS Subcommands
  • 4. Other Useful Subcommands
  • 5. "Thinking OMVS"
  • 6. OMVS Lab1
  • 7. Customizing OMVS
  • 8. Entering a Long Shell Command
  • 9. Suppressing the NewLine
  • 10. OMVS Lab2
  • 11. Recovering from Hung Application
  • 12. Pro’s and Con’s of using OMVS
• D. Using the Irish Commands
  • 1. Moving Data HFS <-> MVS (TSO)
  • 2. OGET Example
  • 3. OPUT Example
  • 4. OCOPY Example
  • 5. OCOPY Example, Using JCL
  • 6. OPUT Lab
• E. Issuing Unix commands from TSO
• F. OSHELL: Issue UNIX cmds from TSO
• G. Using the ISPF Shell - Topics
  • 1. File Mgmt using the ISPF Shell
  • 2. PDS -> HFS using the ISPF Shell
  • 3. System Admin using the ISPF Shell
  • 4. ISHELL Lab
  • 5. Pro’s and Con’s of using ISHELL
• H. Issue UNIX cmds from BATCH JCL
  • 1. BPXBATCH Example: Shell Script
  • 2. BPXBATCH Example: Shell Cmd
  • 3. Pro’s and Con’s of USS access via Batch
• I. Using the UNIX ISPF editor (OEDIT)

IV. z/OS UNIX Operation

• A. Operator Tools & Interfaces
• B. Console Commands D A
• C. Console Commands
• D OMVS D. Console Commands SETOMVS
• E. Console Commands SET OMVS
• F. USS Operator Issues
• G. USS Operator Issues - JES2 Hot Start
• H. UNIX Operation using ISPF Shell

V. z/OS UNIX System Administration

• A. USS architecture
  • 1. Kernel processes
  • 2. User processes
  • 3. Daemon processes
  • 4. Dubbing
• B. SYS1.PARMLIB
• C. BPXPRMxx Wizard
• D. USS startup E. File systems
• F. Hierarchical File System (HFS)
  • 1. Creating a HFS dataset
  • 2. Sharing HFS’s
  • 3. Mounting HFS dataset
  • 4. Network File System
  • 5. Distributed File System
  • 6. Temporary File System
  • 7. Mounting a File System
  • 8. File system maintenance
  • 9. Backup
  • 10. Restore
  • 11. Extended attributes
•  G. Security
  • 1. Adding on OMVS segment
  • 2. SAF “Facility” classes
  • 3. Superuser overview
• H. Tuning tips
  • 1. General UNIX
  • 2. RMF Reports
  • 3. BPXPRM
  • 4. ESQA
  • 5. UID/GID
  • 6. V2.7/filecache
  • 7. STEPLIBs
  • 8. File System
  • 9. Shell variables
  • 10. Using LPA
• VI. z/OS Intro to UNIX Application Development
• A. Development Tools
• B. Daemons & Fork - Overview
• C. Daemons & Fork - Flowchart
• D. Daemons & fork - Example
• E. Daemons & fork - Demo
• F. Processes, Addr Spaces, Threads
• G. Processes, Addr Spaces, Threads
• H. Fork vs Spawn
• I. Some z/OS UNIX Porting Difficulties

Prerequisites

The student should have basic end-user knowledge of Windows as well as knowledge of z/OS.