config

Getopt::Long::config(optionlist)

• Sets the variables in optionlist to change the default behavior of GetOptions. The following options are available:
  • $Getopt::Long::autoabbrev
  • If true, option names can be invoked with unique abbreviations. Default is 1 (true) unless the environment variable POSIXLY_CORRECT has been set.
  • $Getopt::Long::getopt_compat
  • If true, options can start with "+". Default is 1 unless the environment variable POSIXLY_CORRECT has been set.
  • $Getopt::Long::order
  • Value indicates whether options and non-options may be mixed on the command line:
    • $PERMUTE
    • Non-options may be mixed with options. The default if POSIXLY_CORRECT is not set.
    • $REQUIRE_ORDER
    • Mixing is not allowed. The default if POSIXLY_CORRECT is set.
  • $Getopt::Long::ignorecase
  • If true, ignore case when matching options. Default is 1.
  • $Getopt::Long::VERSION
  • The version number of this Getopt::Long implementation in the format major.minor.
  • $Getopt::Long::error
  • Internal error flag. May be incremented from a callback routine to cause options-parsing to fail.
  • $Getopt::Long::debug
  • If true, enables debugging output. Default is 0 (false).