You could even set up a CGI script to do it!

I do this sort of thing all of the time on FTP-only ISPs. I have a RIDICULOUSLY simple barebones template of a CGI script which I modify to run arbitrary commands and display their output.

#!/usr/bin/perl -w

use strict;
use CGI qw(:all);
use CGI::Carp qw( fatalsToBrowser );

my $v = `arbitrary command 2>&1`;

print join( "\n",
            header,
            start_html("Arbitrary Command"),
            strong(h1("Arbitrary Command:")),
            pre( $v ),
            end_html ),"\n";
[download]

Just customize 'arbitrary command' and save the result as, say, 'arbitrary command.cgi' using FTP and Bob's your uncle.

dmm

You can give a man a fish and feed him for a day ...
Or, you can teach him to fish and feed him for a lifetime