1 files changed, 14 insertions, 0 deletions
diff --git a/Library/Homebrew/cmd/command.rb b/Library/Homebrew/cmd/command.rb
new file mode 100644
index 000000000..c2ea96dab
--- /dev/null
+++ b/Library/Homebrew/cmd/command.rb
@@ -0,0 +1,14 @@
+module Homebrew
+  def command
+    cmd = ARGV.first
+    cmd = HOMEBREW_INTERNAL_COMMAND_ALIASES.fetch(cmd, cmd)
+
+    if (path = HOMEBREW_LIBRARY_PATH/"cmd/#{cmd}.rb"; path.file?)
+      puts path
+    elsif (path = which("brew-#{cmd}") || which("brew-#{cmd}.rb"))
+      puts path
+    else
+      odie "Unknown command: #{cmd}"
+    end
+  end
+end