Basic use

• To trace subroutine ‘foo’

• • % perl -MDebug::Trace=foo myprog.pl TRACE: main::foo("blah") called at \ myprog.pl, line 621 package main TRACE: main::foo() returned

• To trace multiple subroutines

• • % perl -MDebug::Trace=foo,bar myprog.pl

• Values are formatted by Data::Dumper