Contents

• List of Tables
• List of Figures
• Introduction
  • History
    • BSD: Berkeley System Distribution
    • XENIX
    • Linux
    • System V (formerly known as ``AT&T" System V)
  • History (continued)
  • The UNIX Operating System
    • Multi-tasking, Time Sharing
    • Multi-user
    • Network Capabilities
    • Portability
    • Flexibility
    • Software Available
    • Virtual Memory
    • Case Sensitivity
  • UNIX Philosophy
  • Exercises
  
  
• File System
  • File and Directory Names
    • Length
    • Conventions
  • Structure of Directories, Files
  • Permissions/File Access Modes
    • chmod: Change Mode (Permissions)
  • Exercises
  
  
• Tour of the File system
  • /: Root
  • /bin and /usr/bin: Commands
  • /dev: Devices
  • /etc and /usr/etc: Management
  • Home Directories
  • /lib and /usr/lib: Libraries
  • /tmp: Temporary Directories
  • /var: Directories
    • /var/adm: Administration
    • /var/mail: System Mailboxes
    • /var/spool: Spooling Areas
    • /var/tmp: Temporary Directory
  • /usr: Directories
    • /usr/bsd: Berkeley Binaries
    • /usr/demos: Demonstration
    • /usr/include: Include Files
    • /usr/local: Local Programs
    • /usr/sbin: More Binaries
    • /usr/share: Shareable Directories
    • /usr/tmp: Temporary
  • Exercises
  
  
• Shells
  • Input/Output Redirection
    • : Input Redirection
    • , : Standard Output
    • 2, &: Standard Diagnostic (Error) Output
  • : Pipes
  • Pipes and Redirections
  • &: Background Processing
  • Metacharacters (Wildcards)
    • : Any Character(s)
    • [,]: List of Characters
    • : Any Single Character
    • {,}: Alternatives (except Korn Shell)
    • : Escape
  • Shell/Job Control
    • jobs: list background jobs
    • CTL-Z: suspend a job
    • bg: send a job in the backgroup
    • fg: bring a job in the foreground
    • CTL-C: kill a job
    • Sample session
  • C Shell
    • path: Search Path
    • history
    • alias
  • Tenex Shell
  • Bourne Shell
    • PATH
    • history
    • alias
  • Korn Shell
    • PATH: Search Path
    • history
    • aliases
    • Other Miscellaneous Commands
  • Bash Shell
    • PATH: Search Path
    • history
    • aliases
  • Exercises
  
  
• Basic Security
  • File Permissions
  • Passwords
  • Root Password
  • SSH
  • TCP Wrappers
  • Exercises
  
  
• Commands I
  • A Command is a File
  • Syntax
  • Login Related Commands
    • Logging On
    • Changing Password
    • Logging Out
  • Help
    • man: Manual Pages
    • Manuals on CDs
  • File system Commands: Directories
    • cd: Change Directory
    • mkdir: Make Directory
    • rmdir: Remove Directory
    • pwd: Print Working Directory
    • cp: Copy
    • mv: Move
  • File system Commands: Files
    • ls: Listing
    • cp: Copy
    • mv: Move
    • ln: Link
    • touch: Update
    • rm: Remove
    • cat: Concatenate
    • more: Browser
    • head: Header
    • tail: Tail End
    • wc: Word Count
    • diff: Difference
    • file: Type of File
  • Printer Commands (Berkeley; lpr/lprm)
    • lpr: Line Printer
    • lpq: Line Printer Queue, Statistics
    • lprm: Line Printer Remove
  • Printer Commands (System V; lp/cancel)
    • lp: Line Printer
    • lpstat: Line Printer Queue, Statistics
    • cancel: Line Printer Remove
  • Printer Commands (linux; kprinter)
  • User Related Commands
    • who: Who is On
    • who am i, whoami: Who Am I
  • Other Miscellaneous Commands
    • date: Display Date
    • clear: Clear the Screen
  • Exercises
  
  
• Editors
  • ``ed" Editor
    • Accessing ed
    • Moving Within a File
    • Finding a Pattern
    • ``s" Substitute
    • ``c" Change Line
    • ``a" Append Text
    • ``i" Input Text
    • ``." Current Line
    • ``p" Print Line(s)
    • ``d" Delete
    • ``w" Write
    • ``q" Quit
  • ``vi" Visual Editor - Introduction
    • Invoking vi
    • vi, command and input modes
    • ``vi" visual Editor - vi mode
    • Moving the Cursor
    • ``^ f" Forward One Screen
    • ``^ b" Backwards One Screen
    • ``G" End of File
    • ``x, d" Delete Character
    • ``dd" Delete Line
    • ``yy" Copy Line in buffer
    • ``p" Put Buffer
    • ``u" Undo
    • ``." (dot) Repeat
    • ``vi" visual Editor - command mode
    • ``:q" Quit
    • ``:w" Write
    • ``:r" Read
    • ``:num" Line Number
    • ``/string/" Finding a Pattern
    • ``n" Next
    • :set all
    • ``vi" visual Editor - input mode
    • ``i" Insert Mode
    • ``a" Append to Character Mode
    • ``A" Append to Line Mode
    • ``r" Replace Character
    • ``R" Replace Characters
    • ``cw" Change Word
  • Other Editors
    • GNU Emacs
    • textedit
    • jot
    • vuepad
    • nedit
    • pico
  • Exercises
  
  
• Electronic Mail
  • Mail at NRC
  • Internet node: Machine Naming Convention
  • Mail Forwarders
  • Mail Folders
  • Signature Files
  • Mail Aliases
  • MIME: Multi-purpose Internet Mail Extensions
  • .forward: Forwarding Mail
  • .vacation: I'm away from my desk
  • Securely Accessing POP/IMAP Mailboxes
    • SSH tunneling of email from UNIX to UNIX
    • SSH tunneling of email from a Windows application to UNIX
    • fetchmail: bring remote mail to local system
  • The Berkely (BSD) Mail Interface
    • Sending Mail
    • Reading Mail
    • Configuring Mail Behaviour
    • Mail Folders
    • Mail Aliases
    • MIME: Multi-purpose Internet Mail Extensions
  • ELM: ELectronic Mail
    • Sending Mail
    • Reading Mail
    • Configuring Mail Behaviour
    • Mail Folders
    • Mail Aliases
    • MIME: Multi-purpose Internet Mail Extensions
  • The Pine mail interface
    • Sending Mail
    • Reading Mail
    • Configuring Mail Behaviour
    • Mail Folders
    • Mail Aliases
    • MIME: Multi-purpose Internet Mail Extensions
  • Exercises
  
  
• Commands II
  • Location Commands
    • whereis: Where Is
    • which: Which Program
    • find: Find
    • locate: find files
  • Process Commands
    • ps: Process Status
    • kill: Kill Process
  • Verifying System Behaviour
    • df: Disk Space
    • du: Directory Usage
    • top: Show Top Processes
    • sar: System Activity Report
    • swap/swapon: Virtual memory
  • Exercises
  
  
• Solutions to Exercises
  • Introduction
  • File System
  • Tour of the File system
  • Shells
  • Security
  • Commands I
  • Editors
  • Electronic Mail
  • Commands II
  
  
• vi Quick Reference
• Bibliography
• Bibliography