diff --git a/docs/en/05-develop/01-connect/01-python.md b/docs/en/05-develop/01-connect/01-python.md
index cbf07521697a7fb58f8fd92fe45c5d1df38d6e3b..fa753222cfd4af540879ed8055994840482261b9 100644
--- a/docs/en/05-develop/01-connect/01-python.md
+++ b/docs/en/05-develop/01-connect/01-python.md
@@ -37,8 +37,8 @@ Run this command in your terminal to save TDengine cloud token and URL as variab
 <TabItem value="bash" label="Bash">
 
 ```bash
-export TDENGINE_CLOUD_TOKEN=<token>
-export TDENGINE_CLOUD_URL=<url>
+export TDENGINE_CLOUD_TOKEN="<token>"
+export TDENGINE_CLOUD_URL="<url>"
 ```
 
 </TabItem>
diff --git a/docs/en/05-develop/01-connect/02-java.md b/docs/en/05-develop/01-connect/02-java.md
index 6d160bc7eb61f937dc540921956492603f9e56b2..99934ec7a826263de250556349e63811b8bb2fe0 100644
--- a/docs/en/05-develop/01-connect/02-java.md
+++ b/docs/en/05-develop/01-connect/02-java.md
@@ -42,7 +42,7 @@ Run this command in your terminal to save the JDBC URL as variable:
 <TabItem value="bash" label="Bash">
 
 ```bash
-export TDENGINE_JDBC_URL=<jdbcURL>
+export TDENGINE_JDBC_URL="<jdbcURL>"
 ```
 </TabItem>
 <TabItem value="cmd" label="CMD">
diff --git a/docs/en/05-develop/01-connect/03-go.md b/docs/en/05-develop/01-connect/03-go.md
index 457583fec9c4e46df0370c87d52af9c77adc0c12..f29e07052da7672b34c4bd5de8956033f7784db9 100644
--- a/docs/en/05-develop/01-connect/03-go.md
+++ b/docs/en/05-develop/01-connect/03-go.md
@@ -33,7 +33,7 @@ Run this command in your terminal to save DSN(data source name) as variable:
 <TabItem value="bash" label="Bash">
 
 ```bash
-export TDENGINE_GO_DSN=<goDSN>
+export TDENGINE_GO_DSN="<goDSN>"
 ```
 
 </TabItem>
diff --git a/docs/en/05-develop/01-connect/04-rust.md b/docs/en/05-develop/01-connect/04-rust.md
index cac5f66ff8b4fb19d2d64daef720ba03de18973f..3de50a62c9c914c61fb6c34511c9fd6dbae351ae 100644
--- a/docs/en/05-develop/01-connect/04-rust.md
+++ b/docs/en/05-develop/01-connect/04-rust.md
@@ -23,8 +23,8 @@ Run this command in your terminal to save TDengine cloud token as variables:
 <TabItem value="bash" label="Bash">
 
 ```bash
-export TDENGINE_CLOUD_TOKEN=<token>
-export TDENGINE_CLOUD_URL=<url>
+export TDENGINE_CLOUD_TOKEN="<token>"
+export TDENGINE_CLOUD_URL="<url>"
 ```
 
 </TabItem>
diff --git a/docs/en/05-develop/01-connect/05-node.md b/docs/en/05-develop/01-connect/05-node.md
index 407a85c9f6fc3b0c9955b5f9d3fcf0270d1d9772..d1504b9b2eb121da6608e7039d2b28263379d9fe 100644
--- a/docs/en/05-develop/01-connect/05-node.md
+++ b/docs/en/05-develop/01-connect/05-node.md
@@ -19,8 +19,8 @@ Run this command in your terminal to save TDengine cloud token as variables:
 <TabItem value="bash" label="Bash">
 
 ```bash
-export TDENGINE_CLOUD_TOKEN=<token>
-export TDENGINE_CLOUD_URL=<url>
+export TDENGINE_CLOUD_TOKEN="<token>"
+export TDENGINE_CLOUD_URL="<url>"
 ```
 
 </TabItem>
diff --git a/docs/en/07-tools/01-cli.md b/docs/en/07-tools/01-cli.md
index f313a00896ad394b7b4e1223d382746742382dd4..8724418c7caff72bbb22e179b8a76fe4b5be25ef 100644
--- a/docs/en/07-tools/01-cli.md
+++ b/docs/en/07-tools/01-cli.md
@@ -19,7 +19,7 @@ To run TDengine CLI to access TDengine cloud, please install [TDengine client in
 Run this command in your Linux terminal to save your URL and token as variable:
 
 ```bash
-export TDENGINE_CLOUD_DSN=<DSN>
+export TDENGINE_CLOUD_DSN="<DSN>"
 ```
 
 </TabItem>
@@ -37,7 +37,7 @@ set TDENGINE_CLOUD_DSN="<DSN>"
 Run this command in your Mac terminal to save your URL and token as variable:
 
 ```bash
-export TDENGINE_CLOUD_DSN=<DSN>
+export TDENGINE_CLOUD_DSN="<DSN>"
 ```
 
 </TabItem>