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→INVESTIGATION 3: COMMAND SUBSTITUTION / MATH OPERATIONS
# Save your editing changes and exit your text editor.<br><br>
# Issue the '''chmod''' command to add execute permissions for the user for the '''dog-years.bash''' file.<br><br>
# Issue the following to run the user-variables.bash Bash shell script:<br><span style="color:blue;font-weight:bold;font-family:courier;">./dog-years.bash</span><br><br>Enter you <u>your</u> age to see what happens.<br><br>
# Issue the following Linux command to run a checking script:<br><span style="color:blue;font-weight:bold;font-family:courier;">bash /home/murray.saul/scripts/week10-check-3 | more</span><br><br>If you encounter errors, make corrections and '''re-run''' the checking script until you<br>receive a congratulations message, then you can proceed.<br><br>
