Shell Programming and Scripting

man echo:

ECHO(1)                               FSF                              ECHO(1)

NAME
       echo - display a line of text

SYNOPSIS
       echo [OPTION]... [STRING]...

DESCRIPTION
       NOTE:  your shell may have its own version of echo which will supercede
       the version described here. Please refer to your shell's  documentation
       for details about the options it supports.

       Echo the STRING(s) to standard output.

       -n     do not output the trailing newline

       -e     enable interpretation of the backslash-escaped characters listed
              below

       -E     disable interpretation of those sequences in STRINGs

       --help display this help and exit

       --version
              output version information and exit

$echo "\nNot interpret backslash-escaped\nother"
\nNot interpret backslash-escaped\nother
$echo -e "\nNot interpret backslash-escaped\nother"

Not interpret backslash-escaped
other
$

rpm -qa | grep ksh
ls -l /bin/sh
echo ${.sh.version}

case ${helpLevel} in
       0) 
            echo  " "
            echo "This script require three parameters"
		    echo " "
		    echo "Usage: $0 [ {project short name} {corresponding ear filename} {was environment name} ]\n"
		    
		    echo "	-First parameter is the short name of project"
		    echo "	-Second parameter is the EAR file in moduleEAR\{projectName} folder corresponding to Project"
		    echo "	-Third parameter is the name of WAS environment\n"
 		    		    
		    echo "Valid project short name(s)\n"
		    showwasprojectName
            
            echo "\nValid WAS environment name(s)\n"
            showwasenvName
		    exit 1  
       ;;