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Tutorial12: Shell Scripting - Part 2

11 bytes removed, 21 March
INVESTIGATION 3: exit AND break STATEMENTS
# Confirm that you are currently located in the '''advanced''' directory.<br><br>
# Use a text editor like vi or nano to create the text file called '''break-1.bash''' (eg. <span style="color:blue;font-weight:bold;font-family:courier;">vi break-1.bash</span>)<br><br>
# Enter the following lines in the '''break-1.bash''' shell script:<br><span style="font-family:courier;font-weight:bold;">#!/bin/bash<br><br>read -p "Enter an integer: " number<br><br>while ! echo $number | egrep "^[0-9]{1,}$" > /dev/null 2> /dev/null || [ $number -ne 5 ] 2> /dev/null<br>do<br> &nbsp; if [ $number -eq 5 ] 2> /dev/null<br> &nbsp; then<br> &nbsp; &nbsp; &nbsp;break<br> &nbsp;fi<br>&nbsp; &nbsp; &nbsp;read -p "Try again. Enter a valid integer: " number<br>done<br><br>echo "The number is: $number"</span><br><br>
# Save your editing session and exit the text editor (eg. with vi: press '''ESC''', then type ''':x''' followed by '''ENTER''').<br><br>
# '''Add execute permissions''' for this Bash shell script.<br><br>
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