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→Complex Regular Expressions
Examples of how to use these complex regular expressions with the grep command are displayed below:
<table align="left"><tr valign="top"><td>[[Image:re-4.png|thumb|right|220px|Example of using anchors.]]</td><td>[[Image:re-5.png|thumb|right|200px|Example of matching characters.]]</td><td>[[Image:re-6.png|thumb|right|200px220px|Example of using character class.]]</td><td>[[Image:re-7.png|thumb|right|200px|Example of matching zero or more occurrence.]]</td></tr></table>
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