The UNIX Environment

• Objective
• The UNIX Login Shell
• Three Major Functions of the Login Shell
• Different Login Shell Types (Bourne, Korn, C)
• Choosing Your Login Shell
• Changing Your Shell From The Command Line
• The Shell as a "Command Interpreter"
  • Basic UNIX Command Syntax
• Example 3-1: Basic UNIX Command Syntax
• Command Line Expansion and Filename Metacharacters
  • Important metacharacters:
• Example 3-2: Sample uses of filename metacharacters
• Combining UNIX Commands
  • Character Streams, Standard Input, Output, and Error
  • Example 3-3: Redirection Examples.
  • Standard Error Symbols
  • Redirecting the standard error is also best shown by example:
  • Creating Pipelines
  • Example 3-5: Simple pipelines.
  • An example of a more complex pipeline:
  • Your Terminal
• The stty Command
• Summary
• "Unix Environment" Exercises
• Project #1: Create Your Home Directory Structure