Learning Perl, 5th Edition

B.8 Other Operators and Functions

Yes, there are more operators and functions than we can fit here, from the scalar .. operator to the scalar , operator, from wantarray to goto(!), from caller to chr. See the perlop and perlfunc manpages.

B.8.1 Transliteration with tr///

The tr/// operator looks like a regular expression, but it's really for transliterating one group of characters into another. It can also efficiently count selected characters. See the perlop manpage.

B.8.2 Here documents

Here documents are a useful form of multiline string quoting; see the perldata manpage.