diff --git a/docs/zh/docs/memsafety/utshell/utshell_guide.md b/docs/zh/docs/memsafety/utshell/utshell_guide.md
index 6798078680cef0985b3673d869026531ac01398c..0a9dd73f03902210f500460e27620947462fbe04 100755
--- a/docs/zh/docs/memsafety/utshell/utshell_guide.md
+++ b/docs/zh/docs/memsafety/utshell/utshell_guide.md
@@ -56,7 +56,7 @@ var=4
 
 ```shell
 
-echo \${var}
+echo ${var}
 
 ```
 
@@ -66,7 +66,7 @@ echo \${var}
 
 ```shell
 
-distros=(ubuntu fedora suse \"arch linux\")
+distros=(ubuntu fedora suse "arch linux")
 
 ```
 
@@ -74,7 +74,7 @@ distros=(ubuntu fedora suse \"arch linux\")
 
 ```shell
 
-echo \${distros\[2\]}
+echo ${distros[2]}
 
 ```
 
@@ -84,7 +84,7 @@ echo \${distros\[2\]}
 
 ```shell
 
-func() { echo \$1; }
+func() { echo $1; }
 
 ```
 
@@ -108,11 +108,11 @@ func 1
 
 func() {
 
-echo \$1 \${10} \#需要传递 10 个参数
+echo $1 ${10} #需要传递 10 个参数
 
 }
 
-\#调用
+#调用
 
 func 1 2 3 4 5 6 7 8 9 0
 
@@ -150,13 +150,13 @@ fi
 
 ```shell
 
-if \[ \"\$s\" = \"string\" \]; then
+if [ "$s" = "string" ]; then
 
-echo \"string is equivalent to \\\$s\"
+echo "string is equivalent to \$s"
 
 else
 
-echo \"string is not equivalent to \\\$s\"
+echo "string is not equivalent to \$s"
 
 fi
 
@@ -226,7 +226,7 @@ for number in 1 2 3 4 5
 
 do
 
-echo \$number
+echo $number
 
 done
 
@@ -236,7 +236,7 @@ for number in {1..500..2}
 
 do
 
-echo \$number
+echo $number
 
 done
 
@@ -248,7 +248,7 @@ done
 
 ```shell
 
-until \[condition\]; do
+until [ condition ]; do
 
 commands
 
@@ -262,7 +262,7 @@ done
 
 ```shell
 
-while \[ condition \]; do
+while [ condition ]; do
 
 commands