Function to set Control-Tab and Control-Shift-Tab for Select Next Tab and Select Previous Tab in Terminal.app

fixTerminal.sh

#!/bin/sh

# First, a function to safely add custom menu item entries to com.apple.universalaccess.plist,
# since duplicate entries in com.apple.custommenu.apps causes a crash when you open
# System Preferences and go to Keyboard -> Shortcusts
function addCustomMenuEntryIfNeeded
{
    if [[ $# == 0 || $# > 1 ]]; then
        echo "usage: addCustomMenuEntryIfNeeded com.company.appname"
        return 1
    else
        contents=`defaults read com.apple.universalaccess "com.apple.custommenu.apps"`
        grepResults=`echo $contents | grep $1`
        if [[ -z $grepResults ]]; then
            # does not contain app
            defaults write com.apple.universalaccess "com.apple.custommenu.apps" -array-add $($1)
        else
            # contains app already, so do nothing
        fi
    fi
}

function fixTerminal
{
    defaults write com.apple.Terminal NSUserKeyEquivalents '{ "Select Next Tab" = "^\U21e5"; "Select Previous Tab" = "^$\U21e5"; }'
    addCustomMenuEntryIfNeeded "com.apple.Terminal"
}