new_tab.sh

#!/bin/sh -
#
# new_tab.sh v0.01
# 
# Script to open a new tab on MacOSX's terminal from the command line
#
# Usage: 
#   new_tab.sh -> opens new tab in current directory
#   new_tab.sh /tmp -> opens new tab in /tmp
#   new_tab.sh /tmp ls -> opens new tab in /tmp and executes ls
#
# Credits:
# - Original code from Thomas Robinson: http://tlrobinson.net/blog/2008/10/23/open-new-terminal-tab/ 
#   licensed under http://creativecommons.org/licenses/by-nc/3.0/us/
#
# - Quick & dirty modifications by Raul Murciano [raul@murciano.net] under the same license.

if [ $# == 0 ]; then
    PATHDIR=`pwd`
else
  PATHDIR=$1
  NEXT_COMMAND=$2
fi

/usr/bin/osascript <<-EOF
activate application "Terminal"
tell application "System Events"
    keystroke "t" using {command down}
end tell
tell application "Terminal"
    repeat with win in windows
        try
            if get frontmost of win is true then
                do script "cd $PATHDIR; clear" in (selected tab of win)
                do script "$NEXT_COMMAND" in (selected tab of win)
            end if
        end try
    end repeat
end tell
EOF