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#!/usr/bin/perl
$last = $ARGV[-1];
splice(@ARGV, -1);
open(PIPE, "ledger -MG @ARGV register $last |") || die;
@values = ();
while (<PIPE>) {
($date, $value) = split;
push @values, $value;
}
close(PIPE);
@values = sort @values;
splice(@values, 0, 1);
splice(@values, -1);
$value = 0.0;
for $item (@values) {
$value += $item;
}
if (@values) {
printf("%.2f\n", $value / @values);
} else {
die "There are no values to average!\n";
}
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