I would like options given on the command line to have priority over all other options (i.e. those in the perl script and those in option files).

There is a option to given a option file on the command line (i.e. --conf=file).

I need a way to parse the command line options looking for --conf=file, if so then do file and then parse the rest of the command line options (minus the --conf=file). In summary, I need to handle the --conf=file before looking at the other command line options to keep the priority correct. 
my %help_options = (
   "color!" => sub { $options{USE_COLOR} = $_[1] },
   "conf=s" => sub { $options{CONF} = $_[1] },
);
GetOptions( %help_options );

do  $options{CONF} if defined $options{CONF};

[download]
Obviously, this doesn't do what I want as the 'do' will be executed after parsing the command line options.
script.pl --conf=file --color should always set $options{USE_COLOR} = 1 regardless of what's in file.

In reply to Prioritizing command line options by kvh009

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.