diff --git a/labcodes/lab1/tools/grade.sh b/labcodes/lab1/tools/grade.sh
index f90d1a1..1a1ca26 100644
--- a/labcodes/lab1/tools/grade.sh
+++ b/labcodes/lab1/tools/grade.sh
@@ -105,7 +105,7 @@ show_msg() {
 	echo $1
 	shift
 	if [ $# -gt 0 ]; then
-		echo "$@" | awk '{printf "   %s\n", $0}'
+		echo -e "$@" | awk '{printf "   %s\n", $0}'
 		echo
 	fi
 }
diff --git a/labcodes/lab2/tools/grade.sh b/labcodes/lab2/tools/grade.sh
index 483b385..ba0e162 100644
--- a/labcodes/lab2/tools/grade.sh
+++ b/labcodes/lab2/tools/grade.sh
@@ -105,7 +105,7 @@ show_msg() {
     echo $1
     shift
     if [ $# -gt 0 ]; then
-        echo "$@" | awk '{printf "   %s\n", $0}'
+        echo -e "$@" | awk '{printf "   %s\n", $0}'
         echo
     fi
 }
diff --git a/labcodes/lab3/tools/grade.sh b/labcodes/lab3/tools/grade.sh
index a6f2425..c4c6cab 100644
--- a/labcodes/lab3/tools/grade.sh
+++ b/labcodes/lab3/tools/grade.sh
@@ -105,7 +105,7 @@ show_msg() {
     echo $1
     shift
     if [ $# -gt 0 ]; then
-        echo "$@" | awk '{printf "   %s\n", $0}'
+        echo -e "$@" | awk '{printf "   %s\n", $0}'
         echo
     fi
 }
diff --git a/labcodes/lab4/tools/grade.sh b/labcodes/lab4/tools/grade.sh
index 8d2b2bd..5ad73b0 100644
--- a/labcodes/lab4/tools/grade.sh
+++ b/labcodes/lab4/tools/grade.sh
@@ -105,7 +105,7 @@ show_msg() {
     echo $1
     shift
     if [ $# -gt 0 ]; then
-        echo "$@" | awk '{printf "   %s\n", $0}'
+        echo -e "$@" | awk '{printf "   %s\n", $0}'
         echo
     fi
 }
diff --git a/labcodes/lab5/tools/grade.sh b/labcodes/lab5/tools/grade.sh
index 29db669..29e7f14 100644
--- a/labcodes/lab5/tools/grade.sh
+++ b/labcodes/lab5/tools/grade.sh
@@ -105,7 +105,7 @@ show_msg() {
     echo $1
     shift
     if [ $# -gt 0 ]; then
-        echo "$@" | awk '{printf "   %s\n", $0}'
+        echo -e "$@" | awk '{printf "   %s\n", $0}'
         echo
     fi
 }
diff --git a/labcodes/lab6/tools/grade.sh b/labcodes/lab6/tools/grade.sh
index a3a52d0..bf48013 100644
--- a/labcodes/lab6/tools/grade.sh
+++ b/labcodes/lab6/tools/grade.sh
@@ -105,7 +105,7 @@ show_msg() {
     echo $1
     shift
     if [ $# -gt 0 ]; then
-        echo "$@" | awk '{printf "   %s\n", $0}'
+        echo -e "$@" | awk '{printf "   %s\n", $0}'
         echo
     fi
 }
diff --git a/labcodes/lab7/tools/grade.sh b/labcodes/lab7/tools/grade.sh
index e8c68bd..7cd37cd 100644
--- a/labcodes/lab7/tools/grade.sh
+++ b/labcodes/lab7/tools/grade.sh
@@ -105,7 +105,7 @@ show_msg() {
     echo $1
     shift
     if [ $# -gt 0 ]; then
-        echo "$@" | awk '{printf "   %s\n", $0}'
+        echo -e "$@" | awk '{printf "   %s\n", $0}'
         echo
     fi
 }
diff --git a/labcodes/lab8/tools/grade.sh b/labcodes/lab8/tools/grade.sh
index 920a344..0010361 100644
--- a/labcodes/lab8/tools/grade.sh
+++ b/labcodes/lab8/tools/grade.sh
@@ -105,7 +105,7 @@ show_msg() {
     echo $1
     shift
     if [ $# -gt 0 ]; then
-        echo "$@" | awk '{printf "   %s\n", $0}'
+        echo -e "$@" | awk '{printf "   %s\n", $0}'
         echo
     fi
 }