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[http://man7.org/linux/man-pages/man1/chmod.1.html chmod]<br>
[http://ss64.com/vi.html vi]
||Linux Command Reference:<br><ul><li>Shell Scripting - Part I (Scripting Basics):<br>'''/home/murray.saul/scripting-1'''<br>Shell Scripting - Part 2 (Logic & Math Expressions):<br>'''/home/murray.saul/scripting-2'''</li><li>Shell Scripting - Part 3 (Loops)<br>'''/home/murray.saul/scripting-3'''</li></ul>