Substituting with s///

• Search and replace:

  	$string =~ s/Larry Wall/Christopher Calzonetti/g;
  

• Returns the number of successful replacements, or "" if the substitution didn't succeed.
• In addition to the common modifiers on the earlier slide, s/// also allows two more:
  
  

  Modifier	Meaning
  /g	Globally replace all matches
  /e	Evaluate the replacement pattern as a perl expression