Good Advice

• When writing anything longer than one line, always:

  • Use the -w command line option
  • Put this line at the top of your program and packages: use strict;
  • Consider using the -T command line option

• By default, Perl is very lax and permissive. Very.

• The "use strict" and -w options are critical for catching mistakes like misspelled variables

• The -T adds a unique level of security