linux - 在 while 循环中退出 bash 脚本

Question

如何从 find 管道 while 循环中退出脚本？

例如以下 exit 只是退出管道子 shell:

find some_directory -type d|while read dir_name; do
  if [ -w "$dir_name" ]; then
    exit 1
  fi
done

Answer 1

您可以检查管道的返回状态:

if ! find some_directory -type d|while read dir_name; do
  if [ -w "$dir_name" ]; then
    exit 1
  fi
done; then exit 1; fi

或者，更简单地说:

 find some_directory -type d|while read dir_name; do
      [ -w "$dir_name" ] && exit 1
    done || exit 1