Grep Regular Expressions

Internal

• grep
• Regular Expressions

Overview

^ - beginning of line

$ - end of line

\t - tab

digits: [0-9]* \d*

\. dot

Characters that need and do not need escaping:

sed: Special Characters (need to be escaped in regular expressions)

sed: Non-Special Characters (do not need escaping in regular expressions)

Regular Expression Syntax

TO NORMALIZE across java Regular Expression Syntax, grep Regular Expression Syntax, sed Regular Expression Syntax.