Advanced UNIX shell programming

Description

Advanced UNIX shell scripting training course description

A follow on hands on course from the Introduction to shell programming course covering the powerful sed and awk tools along with the extra Korn shell programming features.

What will you learn

• Use regular expressions within grep, ed and many other utilities.
• Use awk and sed.
• Integrate sed and awk into shell scripts.
• Recognise the role of shell scripts within the UNIX system.
• Write shell scripts using new Korn shell features including:
• The select construct
• Arrays
• Arithmetic evaluation

Advanced UNIX shell scripting training course details

Advanced UNIX shell scripting training course contents

• Regular Expressions

What are REs? How can they be used? How to write REs

• More REs

e REs Tagging, matching words, repetitions.

• The sed editor

Basic usage: Saving output, options. sed script files, sed commands, Specifying lines to edit, Hold space and pattern space, advanced commands

• Awk

Basic usage, nawk script files, Patterns, Records and fields,
Actions if, while, do, for...
System variables NF, NR, RS...
Arrays
Functions length, printf, cos, user defined... Using nawk in shell scripts

• Korn shell scripts

Review of Bourne shell scripts
functions...
Variables
typeset, manipulating strings Arrays
Arithmetic evaluation
the let command, (( )),
typeset -i
The select construct
Syntax, workings, REPLY, PS3
Miscellaneous
Enhanced I/O, ${10}