Better terminal in Mac OS X -- reversing the control and command key-mappings - macos

Question

I'm trying to have the same KDE Konsole experience within Mac OS X.
Here's my (overly complicated?) setup:
I have Control and Command swapped at the System Preferences level. (Can't live without this)
Parallels lets you, at the Parallels application level, also reverse Control and Command. So I can undo the System Preferences setting (and get the setup I want within virtual Linux)
I want this same per-application-opt-out for the Mac OS X Terminal app. Is it possible?

Answer 1

The solution you're looking for is KeyRemap4MacBook. There is a Tiger, Leopard, Snow Leopard, and Lion version.
Once installed, goto System Preferences -> KeyRemap4MacBook
Then select the following options:
Change Command_L Key (Left Command)
---> Command_L to Control_L (except Terminal, Virtual Machine, RDC)
Change Control_L Key (Left Control)
---> Control_L to Command_L (except Terminal, Virtual Machine, RDC)
You can repeat this for Command_R (Right Command) and Control_R (Right Control) also if you desire. Tested and working on my Macbook.

Answer 2

You can simply ssh into the Linux/Unix system and run X11 programs direct to your Mac screen: ssh -X user#host_or_ipaddress, login, and just run the X11 programs you want (e.g. emacs&) and the X11 apps will appear on the Mac display.
Pros:
X11 windows work just like any other window, including Exposé goodness, etc...
No need to work only inside the Parallels console window
Same solution works with any Linux/Unix system, remote or virtual
ssh connection is secure even over the internet
Tech info:
"ssh -X" turns on X11 forwarding for the ssh connection, i.e. the X11 display connection is tunneled through ssh securely
"ssh -X" also handles X11 authentication tunneling
X11.app is automagically started on OSX by launchd when needed
X11 can connect to displays over the network, which is one of the few cool things about it ;-)

Answer 3

There is very good and key-mapping flexible terminal: iTerm2
My favorite set: iTerm + zsh + oh-my-zsh

Answer 4

The 2016 solution is to use Karabiner open-source program which allows you to remap modifier and other keys with very fine granularity, for example
Remap only the left ⌘ Cmd or Option key.
Remap a key only for specific applications, e.g. only inside Terminal, Emacs, or virtual machine.
For example, here's how to remap left ⌘ Cmd key to act as Ctrl only inside Terminal (and leave the right one unaffected so that you could still use e.g. ⌘ Cmd + Tab to switch between apps):

Answer 5

You can customize the command keys used for an individual application in System Preferences > Keyboard & Mouse > Keyboard Shortcuts. I think (if I understand correctly what you're trying to do) that this might allow you to accomplish your goal. You could remap all of Terminal's command keys to use control instead of command, to get them out of your way... but then you might need to do a lot of customization on the machines you ssh into, so that they use Command instead of control
It seems that you're going to have to do an ENORMOUS amount of work just to allow you to use your pinky instead of your thumb for the modifier key.
Another possibility: user preferences can be manipulated by the "defaults" command. I haven't been able to find a way to use this to control they modifier key mappings, but it should logically be possible (if you're willing to do a lot of digging). If so, then you could write short scripts to switch back and forth between Mac default and your swapped mode. Trigger the scripts with Quicksilver, and whenever you use Terminal you can call one script, and whenever you leave it you can call another. Again, a big pain to achieve what you want, but it might be possible.
I don't think there's a clean and simple solution.
I've seen third-party programs that give more control over manipulating modifier keys, if you're willing to install them (probably kernel extensions). They might be able to do what you want, but I don't recall the names. If you google for programs to fix emacs and vi keys you might find them.
Good luck.

Answer 6

I had exactly the same problem as you. I've remapped Command to CAPS Lock, and Control to Command, but as a frequent Linux user I want both setups to be as similar as possible. This is how I solved it:
Install Keyboard Maestro (not free, but totally worth it), and set it up to run at login.
Inside KM, define macros to send CMD+{key} to CTRL+{key} inside Terminal.
If you want to remap a lot of keys this is a lot of work. But I've already done it myself, you can just download this file kmmacros. Double-clicking is enough to install it. A couple of caveats:
You need to set Terminal to use option as a meta key (Terminal > Preferences > Keyboard).
The bindings are only for emacs-mode. This cheat sheet should be helpful.
Most default shortcuts don't work anymore (CMD-N, CMD-C, ...), and the menu in Terminal does not reflect this. For some conflicts (New Window, Close Window), I've taken the ones from Gnome.