for循环判断文件是否存在

file_list=("AAAAA.txt.ok" "BBBBB.txt.ok" "CCCCC.txt.ok" "DDDDD.txt.ok"")
for li in ${file_list[@]};do
  if [ -f $li ]
  then 
    echo "$li file exist"
  else
    echo "$li file not exist,pls check"
    exit 1
  fi
done