通过Automator可以自意义services，services可以认为是扩展菜单，为应用添加系统未曾提供的功能。本文通过Automator为Finder添加一个扩展菜单，实现当在Finder中选中一个文件夹时，可通过右键菜单直接打开iTerm，并定位到对应目录下。

添加Service

新建一个Automator，类型选择Service。

使用Automator新建Service

添加两个Action，第一个为Get Selected Finder Items，这个是第二个Action的输入参数，当用鼠标选中文件时，通过这个Action可以获得文件夹路径等信息。

第二个Action为Run AppleScript，Action如下图所示：

Finder添加打开iTerm功能

在第二个Action中添加AppleScript，这样当执行service时，便会触发AppleScript执行，AppleScript如下：

-- Adapted from these sources:
-- http://peterdowns.com/posts/open-iterm-finder-service.html
-- https://gist.github.com/cowboy/905546
-- 
-- Modified to work with files as well, cd-ing to their container folder
on run {input, parameters}
  tell application "Finder"
        set my_file to first item of input
        set filetype to (kind of (info for my_file))
        -- Treats OS X applications as files.  To treat them as folders, integrate this SO answer:
        -- http://stackoverflow.com/a/6881524/640517
        if filetype is "Folder" or filetype is "Volume" then
            set dir_path to quoted form of (POSIX path of my_file)
        else
            set dir_path to quoted form of (POSIX path of (container of my_file as string))
        end if
    end tell
    CD_to(dir_path)
end run

on CD_to(theDir)
    tell application "iTerm"
        activate
        set go_dir to "cd " & theDir
        set newWindow to (create window with default profile)
        tell current session of first window
            write text go_dir
        end tell
    end tell
end CD_to

完成上述步骤后，保存Service，命名为：Open iTerm Here。

测试Service

打开Finder，随便选中一个文件夹，然后右击，选择services -> Open iTerm Here，一切顺利的话，可正确打开iTerm。