Name of the Course : PowerShell from PowerPack Duration: 40 Hours What you will learn The Shell Scripting course provides students with the skills to read, write, and debug UNIX shell scripts. The course begins by describing simple scripts to automate frequently executed commands and continues by describing conditional logic, user interaction, loops, menus and functions.

Topics Covered

Course Topics UNIX Shells and Shell Scripts Describe the role of shells in the UNIX environment Describe the standard shells Define the components of a shell script Write a simple shell script Writing and Debugging Scripts Start a script with #! Put comments in a script Change permissions on a script Execute a script Debug a script The Shell Environment Use Bourne and Korn shell variables Assign values to shell variables Unset shell and environment variables Customize the user environment using the .profile file Perform arithmetic operations Create and use aliases Customize the Bourne and Korn shell environments Wildcard Exapasnsion Special Characters Use the tilde expansion and command substitution features of the Korn shell Conditionals and Parameters Use the exit status of a command as conditional control Use the "if" statement to test a condition Pass values using command-line arguments (positional parameters) into a script Create USAGE messages Use conditional if, then, elif, else, and fi constructs Use exit, let, and test statements ([[ ]], " ") Apply the &&, ||, and ! Boolean logic operators Numeric comparison String comparison File attributes comparisons Shell command line parameters How to use positional parameters Use the case statement Interactive Scripts Use the print and echo commands to display text Use the read command to interactively assign data to a shell variable Read user input into one or more variables, using one read statement Use special characters, with print and echo, to make the displayed text more user friendly Create a "here" document Use file descriptors to read from and write to multiple files Loops Write scripts that use for, while, and until loops Write a script using the select statement Describe when to use loops within a script Generate argument lists using command, variable, and file-name substitution The getopt Statement Process script options using the getopts statement Advanced Variables, Parameters, and Argument Lists Declare strings, integers, and array variables Manipulate string variables Change the values of the positional parameters using the set statement within a script Use the Korn shell built-in let, print, set, and typeset statements Functions Create user-defined functions in a shell script Create, invoke, and display functions from the command line Pass arguments into a function Call functions from special (function) files that are saved in one or more function directories Describe where functions are available for use Traps Signals What is a Process? How to view Processes Sending signal to Processes Terminating Processes Shell signal values The trap statement How to clear trap Include trap statements in a script Use the trap statement to catch signals and handle errors What is a Subshell? Compound command exec command

Who should attend

System Administrators System Programmers Database Administrators Web administrators Developers

Pre-requisites

Use basic UNIX commands, such as rm, cp, man, more, mkdir, ps, and chmod Create and edit text files in vi or a text editor Note :: Participants who need a refresher course in UNIX fundamentals can contact separately. This would be a 2 hours FREE session before the participants goes ahead with Shell Script training. It may be helpfull to participants who have earlier worked on UNIX, but currently under a different environment.

What you need to bring

We already have the necessary infrastructure, but carrying a Laptop would be beneficial to participants

Key Takeaways

UNIX Shell Scripting Knowledge