1 files changed, 51 insertions, 0 deletions
diff --git a/bin/.bin/history-stats b/bin/.bin/history-stats
new file mode 100755
index 0000000..0fead1f
--- /dev/null
+++ b/bin/.bin/history-stats
@@ -0,0 +1,51 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+
+use Getopt::Long;
+
+my $history_file = $ENV{SHELL} =~ m{/zsh} ? '.zsh_history' : '.bash_history';
+
+open my $fh, '<', "$ENV{HOME}/$history_file"
+    or die "couldn't open $ENV{HOME}/$history_file: $!";
+my $n = 10;
+my $subcommand;
+GetOptions(
+    'n=i'          => \$n,
+    'subcommand=s' => \$subcommand,
+);
+
+my %cmds;
+my %sudo_cmds;
+
+while (<$fh>) {
+    chomp;
+
+    # strip zsh history timestamps
+    s/^[^;]*;// if /^:/;
+
+    s/^\s*(.*?)\s*$/$1/;
+    my @words = split /\s+/;
+    next unless @words;
+    shift @words while @words && $words[0] =~ /^[A-Z][A-Z0-9_]*=/;
+    next unless @words;
+    my $sudo;
+    if ($words[0] eq 'sudo') {
+        $sudo = 1;
+        shift @words;
+    }
+    if ($subcommand) {
+        next unless $words[0] eq $subcommand;
+        shift @words;
+        shift @words while @words && $words[0] =~ /^-/;
+    }
+    $cmds{($words[0] || '')}++;
+    $sudo_cmds{$words[0]}++ if $sudo;
+}
+
+for my $cmd (sort { $cmds{$b} <=> $cmds{$a} } keys %cmds) {
+    printf '%5d %s', $cmds{$cmd}, $subcommand ? "$subcommand $cmd" : $cmd;
+    printf ' (%d under sudo)', $sudo_cmds{$cmd} if $sudo_cmds{$cmd};
+    print "\n";
+    last unless --$n;
+}