13,420
edits
Changes
→KEY CONCEPTS
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|175px|Example of using anchors.]]</td><td>[[Image:re-2.png|thumb|right|200px|Example of matching characters.]]</td><td>[[Image:re-1.png|thumb|right|300px|Example of using character class.]]</td><td>[[Image:re-2.png|thumb|right|200px|Example of matching zero or more occurrence.]]</td></tr></table>
===Extended Regular Expressions===
