X11 for Mac - Download

http://xquartz.macosforge.org/trac/wiki/X112.5.3

TAG for tabs in MAC when you remote login to hosts

http://www.macosxhints.com/article.php?story=20071030080651383

My solution is kind of crude, but it does work. Simply create a hard link to the ssh binary with the name of each remote system you need to connect to (symbolic links don't work; ssh is still displayed):

sudo ln /usr/bin/ssh /usr/bin/remote-name

Then, while running Terminal, copy one of the existing terminal templates and modify it as you normally would to change colors, etc. After that, in the shell settings tab, substitute the remote-name link you've previously created for ssh; an example makes this more clear.

Instead of ssh -l username remote-name, specify remote-name -l username remote-name, and voila, the remote system name is now displayed in the tab label.

UI Diff tool - diffmerge

download link - http://download.sourcegear.com/DiffMerge/3.1.0.15888/Apple/DiffMerge.3.1.0.1002.dmg

how to use :

1. download dmg to a location
2. explode/install it, but double clicking on it, it will ,
you will find a commandline folder in the window, copy it over to a loc

3. To install just drag the DiffMerge application to the Applications folder.

To make it easier to use DiffMerge from the command line, we have included
an example shell script and a man page. See the CommandLine folder.
[] Copy the shell script to some place like /usr/bin/diffmerge or
/usr/local/bin/diffmerge. It should have mode 755.
[] Copy the man page to /usr/share/man/man1/diffmerge.1. It should have
mode 644.
These stesp are completely optional.