diff --git a/00base/07env-install-centos.sh b/00base/07env-install-centos.sh
index d2ee8cc..f87aed9 100644
--- a/00base/07env-install-centos.sh
+++ b/00base/07env-install-centos.sh
@@ -231,13 +231,13 @@ function init:add_user() {
   local add_sudoers="${ADD_USER_NAME}    ALL=(ALL)       NOPASSWD:ALL"
   command::exec "${host}" "
   id -u ${ADD_USER_NAME} >/dev/null 2>&1
-  if [ \$? -ne 0 ]; then
+  if [ \$? -ne '0' ]; then
     # 创建用户
     adduser ${ADD_USER_NAME}
     # 设置密码
     echo ${ADD_USER_NAME}:${ADD_USER_PASSWORD} | chpasswd
   fi
-  if [ \`grep -c '$add_sudoers' '/etc/sudoers'\` -ne 0 ];then
+  if [ \`grep -c '$add_sudoers' '/etc/sudoers'\` == '0' ];then
     # 新增修改权限
     chmod -v u+w /etc/sudoers
     echo -e \"\n$add_sudoers\n\" >> /etc/sudoers