Display IP adress of the given interface in a most portable and reliable way. That should works on many platforms.

x=IO::Interface::Simple; perl -e 'use '$x';' &>/dev/null || cpan -i "$x"; perl -e 'use '$x'; my $ip='$x'->new($ARGV[0]); print $ip->address,$/;' <INTERFACE>
Thanks to comment if that works or not... If you have already typed that snippet or you know you already have IO::Interface::Simple perl module, you can type only the last command : perl -e 'use IO::Interface::Simple; my $ip=IO::Interface::Simple->new($ARGV[0]); print $ip->address,$/;' <INTERFACE> ( The first perl command will install the module if it's not there already... )

1
By: sputnick
2009-12-13 02:23:40

What Others Think

Doesn't work on MacOS X.
putnamhill · 668 weeks and 3 days ago
Correction: It might work if I install the required module. Thanks for sharing IO::Interface::Simple. I'll check it out.
putnamhill · 668 weeks and 3 days ago
Doesn't work in Solaris 10.
billbose · 668 weeks and 2 days ago
What is the output of perl -e 'use IO::Interface::Simple; my $ip=IO::Interface::Simple->new($ARGV[0]); print $ip->address,$/;' <INTERFACE> ?
sputnick · 668 weeks and 2 days ago
"cpan" command doesn't exists on Solaris, maybe on OsX too, so you should install the module : perl -MCPAN -e 'CPAN::Shell->install(IO::Interface::Simple)' and then use the last command : perl -e 'use IO::Interface::Simple; my $ip=IO::Interface::Simple->new($ARGV[0]); print $ip->address,$/;' <INTERFACE>
sputnick · 668 weeks and 2 days ago
You can try that one if you have quoting problems on certani Unices : export x=IO::Interface::Simple; perl -M$x -e1 &>/dev/null || cpan -i "$x"; perl -M$x -e 'my $ip=$ENV{"x"}->new($ARGV[0]); print $ip->address,$/;' eth0
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