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UNIX Advanced Shell Programming Tools (UT)

Course Description Schedule Course Outline

Detailed Course Outline

Course Contents - DAY 1

  • Course Introduction
  • Administration and Course Materials
  • Course Structure and Agenda
  • Delegate and Trainer Introductions

Session 1: BACKUP AND RESTORE UTILITIES

  • The tar command
  • Compression utilities gzip, bzip2, zip and compress
  • Exercise: Backing up and restoring files using tar
  • Exercises: Compressing files

Session 2: BACKGROUND JOB SCHEDULING

  • Scheduling jobs with the cron command
  • Scheduling jobs with the at command
  • Exercises: Running background jobs

Session 3: COMMANDS FOR COMPARING FILES

  • Compare two files with the cmp command
  • Compare two files with the comm command
  • Compare two files with the diff and sdiff commands
  • Compare large files with the bdiff command
  • Exercises: Identifying file differences

Session 4: SPLITTING FILES

  • The split and csplit commands
  • Exercises: Splitting files

Course Contents - DAY 2

Session 5: IDENTIFYING AND TRANSLATING CHARACTERS

  • od - octal dump
  • Use cat to display non-printing characters
  • The expand and unexpand commands to convert between tab and space characters
  • The tr command for character translation
  • Exercises: Translating characters with tr

Session 6: REGULAR EXPRESSION NOTATION REVIEW

  • Standard regular expressions
  • Extended regular expressions

Session 7: THE STREAM EDITOR - sed

  • sed command line syntax
  • sed command processing
  • Pattern space
  • sed addresses
  • sed commands
  • Hold and get functions
  • Advanced flow control
  • Exercises: Text processing with sed

Session 8: INTRODUCTION TO THE PATTERN SCANNING UTILITY - awk

  • Introduction and command line syntax
  • The awk program structure
  • Operators
  • Simple patterns
  • Extended patterns
  • Special patterns (BEGIN and END)
  • Program variables: Built-in variables, User defined variables, Arrays
  • Mathematical operators
  • Displaying output with print and printf
  • Exercises: Create awk scripts to extract selected data from a file and generate reports

Course Contents - DAY 3

Session 9: awk PROGRAM CONTROL STRUCTURES

  • Program control structures
  • The if construct
  • The while and do ... while constructs
  • The basic for construct
  • Associative array handling
  • Functions: Mathematical and string functions, The system function, The getline function, User defined functions
  • Exercises: Create an awk script using an program control structures and arrays

Session 10: awk DEBUGGING AWK SCRIPTS

  • Responding to Syntax errors
  • Responding to Logical errors

Session 11: MISCELLANEOUS TOOLS

  • bc (calculator)
  • fuser (testing for files in use)
  • getops (checking options passed to shell scripts)
  • printf (formatting screen output)
  • logger (script logging)
  • xargs (generating arguments for a command)
  • eval (re-evaluating variables)
  • Exercises: Using tools within a shell script
 

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