Table of Contents Day One: Basics What is UNIX What is an Operating System What is the UNIX Kernel What are Shells Utilities Executing Utilities Using Wild Cards Input, Output, and Redirection The "man" Utility UNIX and Webmasters History of UNIX Logging In and Out Resetting Your Password Day Two: Essential Commands The UNIX File System Relative versus Absolute Pathnames The "pwd" Utility The "cd" Utility The "ls" Utility (And Hidden Files) Permissions The Password File The Group File Who Are you and Who else is here? Undersrtanding the Permission Bits The "chmod" Utility The "chown" Utility The "chgrp" Utility Reading a File Creating a File Copying Files Moving or Renaming Files Deleting Files Manipulating Directories Creating Directories Deleting Directories Moving and Renaming Directories Day Three: Advanced Tools Searching The "grep" Utility The "find" Utility The "sort" Utility The "diff" Utility The "comm" Utility The "uniq" Utility The "spell" Utility The "wc" Utility The "cut" Utility The "paste" Utility Time and Date Managing Processes Manipulating your Environment Compression and Archiving