# For regex diagnostics
use re 'debug';

# For detailed regex explanations
use YAPE::Regex::Explain;
my $regex=YAPE::Regex::Explain->new(qr/.../);
print $regex->explain;

# For opcode and optimizer details
perl -MO=Concise ...

# Almost like ctags
perl -MO=Xref myscript.pl >myscript.xref

# Profiling
perl -d:DProf test.pl

# Dependencies
perl -l -MSOAP::Lite -e 'foreach (keys %INC) {s#/#::#g; chop;chop;chop
+; print}'

# Options
GetOptions
  help      =>  sub {usage; exit},
  verbose   =>  \(my $verbose = 1),  # Defaults to 1
  "debug=i"  =>  \ my $debug,
  silent    =>  \ my $silent,
    or die  "....";
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