Mega Code Archive
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;