[2.0.4] dmctl: support read master addr from env (#691)

pingcap · Jun 21, 2021 · da49a18 · da49a18
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diff --git a/en/dmctl-introduction.md b/en/dmctl-introduction.md
@@ -74,13 +74,17 @@ The command mode differs from the interactive mode in that you need to append th
 > **Note:**
 >
 > + A dmctl command must be followed by only one task operation.
+> + Starting from v2.0.4, DM supports reading the `-master-addr` parameter from the environment variable `DM_MASTER_ADDR`.
 
 {{< copyable "shell-regular" >}}
 
 ```bash
 ./dmctl --master-addr 172.16.30.14:8261 start-task task.yaml
 ./dmctl --master-addr 172.16.30.14:8261 stop-task task
 ./dmctl --master-addr 172.16.30.14:8261 query-status
+
+export DM_MASTER_ADD="172.16.30.14:8261"
+./dmctl query-status
 ```
 
 ```

diff --git a/zh/dmctl-introduction.md b/zh/dmctl-introduction.md
@@ -74,13 +74,17 @@ Use "dmctl [command] --help" for more information about a command.
 > **注意：**
 >
 > + 一条 dmctl 命令只能跟一个任务操作
+> + 从 v2.0.4 版本开始，支持从环境变量 (DM_MASTER_ADDR) 里读取 `-master-addr` 参数
 
 {{< copyable "shell-regular" >}}
 
 ```bash
 ./dmctl --master-addr 172.16.30.14:8261 start-task task.yaml
 ./dmctl --master-addr 172.16.30.14:8261 stop-task task
 ./dmctl --master-addr 172.16.30.14:8261 query-status
+
+export DM_MASTER_ADD="172.16.30.14:8261"
+./dmctl query-status
 ```
 
 ```