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→INVESTIGATION 3: exit AND break STATEMENTS
'''THE EXIT STATEMENT'''
The '''exit''' statement is used to terminate a shell script.<br>This statement is very useful when combined with logic in a shell script to display<br>a '''message''' if the command was '''not run correctly''' and terminate the running of the shell script.<br><br>The ''exit'' command can contain an argument to provide the '''exit status'''<br>of your shell script (i.e. TRUE or FALSE value).<br><br>
'''Perform the Following Steps:'''
# '''Login''' to your matrix account.<br><br>
# Issue a Linux command to <u>confirm</u> you are located in the '''advanced''' directory.<br><br>The '''exit''' statement is used to terminate a shell script.<br>This statement is very useful when combined with logic in a shell script to display<br>a '''message''' if the command was '''not run correctly''' and terminate the running of the shell script.<br><br>The ''exit'' command can contain an argument to provide the '''exit status'''<br>of your shell script (i.e. TRUE or FALSE value).<br><br>
# Use a text editor like vi or nano to create the text file called '''exit.bash''' (eg. <span style="color:blue;font-weight:bold;font-family:courier;">vi exit.bash</span>)<br><br>
# Enter the following lines in the '''exit.bash''' shell script:<br><span style="font-family:courier;font-weight:bold;">#!/bin/bash<br><br>if [ $# -ne 1 ]<br>then<br> echo "USAGE: $0 [arg]" >&2<br>exit 1<br>fi<br><br>echo "The argument is: $1"</span><br><br>