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{{Admon/tip|Bash Shell Scripting Tips:|<br><ul><li>'''Variables:''' There are 3 types of variables that can be used in shell scripting: '''ENVIRONMENT''' (eg. $USER), '''user-defined''' ($varName), and '''positional parameters''' (eg. $1, $2... containing arguments after shell script or by using set command (eg. set $(ls) ). Using dollar sign ($) in front of variable expands the value assigned.<br><br>x|

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