minor changed

msh.c

@@ -134,7 +134,7 @@ char *getPrompt() {
 		close(STDERR_FILENO); // Do not print errors to the screen
 
 		execlp("bash", "bash", "-i", "-c", "\
-			ver=$(bash --version | head -n 1 | awk \'{print $4}\' | grep -o \"...\");\
+			ver=$(bash --version | head -n 1 | awk \'{print $4}\' | grep -o \".\\..\");\
 			check_ver=$(echo -e \"${ver}\n4.3\" | sort -V | head -n 1);\
 			if [[ \"${ver}\" == \"${check_ver}\" ]]; then\
 			  echo \"[${USER}]\";\