Topics Covered

• Basics
  • Explain what awk is and where it is useful
  • Invoke awk from command line and from awk scripts
  • Use awk to extract data form files in several ways
• Patterns
• Explain what awk patterns are and where they are useful when programming in awk
• Use expressions, ranges, and REs to define awk patterns
• Generate complex reports using awk
• Actions
• Expressions and statements
• Operators
• Flow control mechanisms
• Built-in variables
• Input and Output
• Format program output with "printf"
• Read/write files with pipes using awk's I/O capabilities
• Use awk's line parsing features
• Utilize commnad line parameters
• Functions
• Use awk's built-in string and arithmetic functions
• Define your own functions
• Create local variables in functions
• Arrays
• Write programs using awk's arrays
• Manipulate arrays using array control statements
• Determine when arrays are useful data structures in awk programs

Audience:

     This course is designed for individuals who write/read/use shell scripts in a UNIX environment. The awk programming language is utilized in these scripts to extract data and generate reports.

Prerequisites:

• Intermiate Unix and Shell Programming, or equivalent
• Knowledge of the vi editor