UNIX Fundamentals

• A brief history of UNIX and Linux
• UNIX structure: shells, applications, and the kernel
• A brief history of shells
• Logging in
• Basic command structure
• Getting help in UNIX with man and info
• Navigating the filesystem

Managing Files

• File types in UNIX
• File properties
• Groups and users
• File access modes
• Changing file access modes and setting a default mode
• Working with directories
• Symbolic links
• Wildcards and shell globbing
• Manipulating plain files
• Viewing files
• Some file utilities: uniq, sort, cut, paste, and wc

Text Editing

• Available editors
• Starting vi
• Managing modes in vi
• Command mode basics
• Invoking insert mode
• Navigation commands
• Searching in vi
• Issuing ex commands
• Additional vi commands

Customizing the Shell

• Shell variables
• How strings are interpreted
• Double quotes and single quotes
• Advanced referencing
• Built-in shell variables
• Using and setting environment variables
• Defining aliases
• Setting options
• Command line editing and history
• Filename completion

Standard I/O

• The standard streams: in, out, and err
• Simple redirection
• Using pipes
• Additional redirection options
• Overwriting and the noclobber option
• Here documents
• The standard error stream
• Complex command forms
• Splitting a stream with tee
• Advanced redirections
• Reading input

Text Processing

• Pattern matching and regular expressions
• Metacharacters
• Search patterns
• Using grep
• When to use fgrep and egrep
• Replacement patterns
• Overview of sed
• sed command syntax
• Some useful sed commands and examples
• Overview of awk
• Built-in awk variables
• Some useful awk commands and examples

UNIX Processes

• Process ids and job numbers
• Background execution
• Basic job control
• Suspending processes
• Sending signals
• Handling and ignoring signals
• Coroutines
• Process synchronization
• Two-way pipes and asynchronous communication
• Sub-shells