Writing Perl Modules for CPAN

-u option

using with cvs diff, 154

using with patches, 145

UML state diagrams, depicting events in, 258

UML (Unified Modeling Language)

performing visual modeling with, 92

state machines depicted with, 258

unary operators, overloading, 51-52

unified diff format, using with patches, 146

UNIVERSAL base class, inheriting from, 47-48

UNIX systems, installing CPAN modules on, 14

upper() function, using with references, 37

use lib statement, using, 29

use lines in Counter.pm file generated by h2xs program, 102

use statement, using with modules, 22

user communities, growing, 139-142