Execute command in new tab (for iTerm)

tab.sh

tab() {
s=$(printf "%s" "$*" | base64 | tr -d \\n)
osascript &>/dev/null <<EOF
tell application "iTerm"
  activate
  tell current window to set tb to create tab with default profile
  tell current session of current window to write text " eval \$(echo $s | base64 --decode)"
end tell
EOF
}