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→Using Variables in Shell Scripts
''<b>User-defined variables</b> are variables that can be used in the shell script for '''customized''' purposes.
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Data can be stored and removed within a variable using an '''equal sign'''.<br><br>The '''read''' command can be used to prompt the user to enter data into a variable.<br>Refer to the diagram on the right-side to see how user-defined variables are assigned data.<br><br>
'''Positional Parameters and Special Parameters'''