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→INVESTIGATION 1: CREATING A SHELL SCRIPT
# Re-run your shell script: <span style="color:blue;font-weight:bold;font-family:courier;">./hello</span><br><br>Although your shell script should work, it is recommended to force your shell script to run in a specific shell. This helps prevent your shell script encountering errors when run in the incorrect shell (i.e. syntax not recognized in a specific shell).<br><br>
# Edit your '''hello''' shell script using a text editor.<br><br>
# xInsert the following line at the beginning of the TOP line of your hello file:<br><span style="font-family:courier;">#!/bin/bash</span><br><br>This is referred to as a she-bang line. It forces the script to be run in the Bash Shell. When your Bash Shell script finishes execution, you are returned to your current shell that you are using (which in our case in Matrix, is still the Bash shell).<br><br># Save your editing changes and exit your text editor.<br><br># It is a good idea to rename your shell script to include an extension to indicate that the file is a Bash Shell script file. Issue the following linux command to rename your shell script file:<br><span style="color:blue;font-weight:bold;font-family:courier;">mv hello hello.bash</span><br><br># Run your renamed shell script by issuing:<br><span style="color:blue;font-weight:bold;font-family:courier;">./hello.bash</span><br><br>
::In the next investigation, you will learn to create and run shell scripts that<br>use variables, positional and special parameters.<br><br>
