The s Operator and Substitution : modifier « Regular Expression « Perl






  1. Perl
  2. Regular Expression
  3. modifier

The s Operator and Substitution

    

The s operator is for substitutions. 
The g stands for global change on a line. 

Format

s/old/new/;
s/old/new/i;
s/old/new/g;
s+old+new+g;
s(old)/new/;   s[old]{new};
s/old/expression to be evaluated/e;
s/old/new/ige;
s/old/new/x;








Related examples in the same category

1.The e Modifier Evaluating an Expression
2.The e modifier
3.The g Modifier Global Substitution
4.The m Operator and Matching
5.The m modifier controls the behavior of the $ and ^ anchor metacharacters.
6.The s Modifier-The Dot Metacharacter and the Newline
7.The s operator supports a number of variables
8.The x Modifier: The Expressive Modifier
9.The i Modifier Case Insensitivity
10.\B matches only if the pattern is contained in a word.
11.The \s metasymbol and whitespace
12.ei modifier
13.Use /gc to remember position
14.Use \G to match rest of text
15.The \S metasymbol and nonwhitespace
16.Matching Modifiers
17.Inline Modifiers