Convert an IP address to its hex value. Useful when setting up network boot under Sun. For example: ip2hex 192.168.21.1 returns IP 192.168.21.1 is HEX C0A81501
#!/usr/local/bin/perl

# IP address to HEX address converter
# usage: ip2hex [ip]
# ip2hex 158.23.45.10
# outputs 9E172D0A
# version 1.0

use Getopt::Std;

($me = $0) =~ s|.*/||;

getopts("h");

die "Usage: $me [ip]\n" if $opt_h;

$ip = $ARGV[0];

if (! $ip) {
        print "Enter IP addr: ";
        chop($ip = <STDIN>);
}

print "IP $ip is HEX ";
foreach (split /\./, $ip) {
        printf "\U%02x", $_;
}
print "\n";

[download]

In reply to IP2HEX by spp

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.