Grep Regular Expressions: Difference between revisions

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=Regular Expression Syntax=
=Regular Expression Syntax=
<font color=red>TO NORMALIZE across [[Java_Regular_Expressions#Regular_Expression_Syntax|java Regular Expression Syntax]], [[Grep_Regular_Expressions#Regular_Expression_Syntax|grep Regular Expression Syntax]], [[Sed_Regular_Expressions#Regular_Expression_Syntax|sed Regular Expression Syntax]].</font>

Latest revision as of 23:14, 29 July 2017

Internal

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.