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UNIX Training  

An introduction to the writing of UNIX Shell scripts using the Korn and Bash shells and to the more advanced features of UNIX including the batch editor sed and the text file processing language awk.

Although based on the Solaris version of UNIX running on a desktop PC, the principles learnt may be applied to all other versions of UNIX including Linux, AIX, HP-UX and SCO.

The course takes the format of a workshop, with a mix of lecture, working examples and practical exercises. Although the content may be customised, at least 1 day is normally needed to cover the core elements

Full course notes are provided along with sample script files and free software tools for use in accessing a UNIX server

Course Objectives:

• The basics of Unix and its advantages over other OS
• Detailed understanding of the Unix Shell scripting
• The various layers of the Unix architecture
• Running and troubleshooting of the Unix Shell scripts
• The Unix files, directories and user classes
• Unix file attributes and changing file permissions
• Real world Unix shell programming projects

Basic Shell Scripting

Shell Basics

• Types of shells
• Shell functionality
• Environment

Writing first script

• Writing script & executing basic script
• Debugging script
• Making interactive scripts
• Variables (default variables)
• Mathematical expressions

Conditional statements

• If-else-elif
• Test command
• Logical operators-AND,OR,NOT
• ase –esac

Loops

• While
• For
• Until
• Break & continue

Command line argumentst

• Positional parameters
• Set & shift
• IFS
• Break & continue

Functions & file manipulations

• Processing file line by line
• Functions

Regular Expression & Filters

• What is regular expression
• Grep,cut ,sort commands Grep patterns

SED & AWK

Processes

• Concept of process in Unix
• Background processes
• Scheduling processes -At, batch & Cron

Misc

• Trapping signals
• String substitutions / manipulations