Apple script to open an iterm2 tab from right-clicking on a file or folder in Finder. To use: (1) Open Automator (2) Create a new service (3) Change "Service receives selected" drop downs to "Files or folders" in "Finder" (4) Select "Run applescript" from the sidebar, then paste this script in and save

Open iterm tab here

-- 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
		try
			set t to the last terminal
		on error
			set t to (make new terminal)
		end try
		tell t
			launch session "Default Session"
			tell the last session
				write text "cd " & theDir
				write text "ls"
			end tell
		end tell
	end tell
end CD_to