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Tutorial10: Shell Scripting - Part 1

58 bytes added, 17:46, 17 February 2021
INVESTIGATION 2: USING VARIABLES IN SHELL SCRIPTS
# '''Save''' your editing changes and '''exit''' your text editor.<br><br>
# Issue the following linux command to run this shell script with the Bourne Shell (i.e. '''sh'''):<br><span style="color:blue;font-weight:bold;font-family:courier;">sh hello</span><br><br>You should notice that the shell name is now '''bash''' although you are trying to run it in the ''Bourne Shell'' ('''sh'''). The "she-bang" line forces a new bash shell to be used to run your shell script.<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(referred to as a "''portable Bash shell script''"). <br>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 for confirmation by issuing:<br><span style="color:blue;font-weight:bold;font-family:courier;">./hello.bash</span><br><br>
# Enter the following linux command to return to your Bash shell: <span style="color:blue;font-weight:bold;font-family:courier;">exit</span><br><br>
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