Linux Training

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 arguments

• 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

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