Set the title, color, and split an iTerm2 tab

workspace.sh

#!/bin/bash

# Usage: ./workspace "Tab Title" R G B
# Example: ./workspace "My Project" 100 150 250

TITLE="${1:-Workspace}"
RED="${2:-100}"
GREEN="${3:-150}"
BLUE="${4:-250}"
DIR="$PWD"

# 1. Set the tab title
echo -ne "\033]1;${TITLE}\007"

# 2. Set the tab color
echo -ne "\033]6;1;bg;red;brightness;${RED}\a"
echo -ne "\033]6;1;bg;green;brightness;${GREEN}\a"
echo -ne "\033]6;1;bg;blue;brightness;${BLUE}\a"

# 3. Split the panes using AppleScript
osascript <<EOF
tell application "iTerm2"
    tell current window
        -- Split original session horizontally to create bottom_session
        tell current session
            set bottom_session to split horizontally with same profile
        end tell

        -- Split bottom_session vertically to create bottom_middle_session
        tell bottom_session
            set bottom_middle_session to split vertically with same profile
        end tell

        -- Split bottom_middle_session vertically to create bottom_right_session
        tell bottom_middle_session
            set bottom_right_session to split vertically with same profile
        end tell

        -- Set titles and move all three bottom panes to the starting directory
        tell bottom_session
            set name to "${TITLE}"
            write text "cd '${DIR}' && clear"
        end tell
        tell bottom_middle_session
            set name to "${TITLE}"
            write text "cd '${DIR}' && clear"
        end tell
        tell bottom_right_session
            set name to "${TITLE}"
            write text "cd '${DIR}' && clear"
        end tell
    end tell
end tell
EOF