Perl tr /// Function
This is not a function. This is the transliteration operator; it replaces all occurrences of the characters in SEARCHLIST with the characters in REPLACEMENTLIST.
Following is the simple syntax for this function:
This function returns number of characters replaced or deleted.
Following is the example code showing its basic usage:
#!/usr/bin/perl -w $string = 'the cat sat on the mat.'; $string =~ tr/a-z/b/d; print "$string\n";
When above code is executed, it produced following result. Here option d is used to delete matched characters.
b b b.