shell 执行过程中确认脚本模板

#!/bin/bash

function confirm() {
  echo -e $1
  read -r -p "确认继续吗? [Yes/No] " input
  case $input in
  [yY][eE][sS] | [yY])
    $2
    ;;
  [nN][oO] | [nN])
    return 0
    ;;
  *)
    echo "Invalid input..."
    exit 1
    ;;
  esac
}

function test1() {
  echo $1
}

BASE_DIR=$(
  cd $(dirname $0)
  pwd
)

confirm "即将执行xxx" "test1 ${BASE_DIR}"

echo "123"