Added a History Statistics command

history-stats

@@ -0,0 +1,39 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+our %commands;
+
+open(HISTORY, "$ENV{HOME}/.histfile") || die "Cannot open history file: $!\n";
+
+
+sub hashValueDescendingNum {
+    $commands{$b} <=> $commands{$a};
+}
+
+while (<HISTORY>) {
+    my $command = $_;
+
+    my @comm = split(' ', $command);
+
+    if ($comm[0] eq "sudo") {
+        shift @comm;
+    }
+
+    if ($comm[0] eq "..") {
+        next;
+    }
+
+    $comm[0] =~ s/\.\///;
+    
+    if (not exists($commands{$comm[0]})) {
+        $commands{$comm[0]} = 0;
+    }
+    $commands{$comm[0]}++;
+}
+
+foreach my $key (sort hashValueDescendingNum (keys(%commands))) {
+    my $value = sprintf "%8s", $commands{$key};
+    print "$value\t$key\n";
+}