diff --git a/examples/simple_example/api_Attachment.cc b/examples/simple_example/api_Attachment.cc
index b77e10b7..837f217e 100644
--- a/examples/simple_example/api_Attachment.cc
+++ b/examples/simple_example/api_Attachment.cc
@@ -2,14 +2,14 @@
 using namespace api;
 //add definition of your processing function here
 void Attachment::get(const HttpRequestPtr& req,
-         const std::function<void (const HttpResponsePtr &)>&callback)
+                     const std::function<void (const HttpResponsePtr &)>&callback)
 {
     auto resp=HttpResponse::newHttpViewResponse("FileUpload",HttpViewData());
     callback(resp);
 }
 
 void Attachment::upload(const HttpRequestPtr& req,
-            const std::function<void (const HttpResponsePtr &)>&callback)
+                        const std::function<void (const HttpResponsePtr &)>&callback)
 {
     FileUpload fileUpload;
     fileUpload.parse(req);
diff --git a/get_version.sh b/get_version.sh
index 21889cf4..8bb3d2c2 100755
--- a/get_version.sh
+++ b/get_version.sh
@@ -3,15 +3,15 @@
 GIT_VER=`git log|grep commit|wc -l|sed -e "s/^ *//"`
 MD5=`git log|head -1|awk '{printf $2}'`
 TMP_FILE=/tmp/version
-echo "#define VERSION \"0.9.1.$GIT_VER\"" > $TMP_FILE
-echo "#define VERSION_MD5 \"$MD5\"" >> $TMP_FILE
+echo "#define VERSION \"0.9.1.$GIT_VER\"" > ${TMP_FILE}
+echo "#define VERSION_MD5 \"$MD5\"" >> ${TMP_FILE}
 if [ ! -f $1 ];then
-mv -f $TMP_FILE $1
+mv -f ${TMP_FILE} $1
 else
-diff $TMP_FILE $1
+diff ${TMP_FILE} $1
 if [ $? -eq 1 ];then
-mv -f $TMP_FILE $1
+mv -f ${TMP_FILE} $1
 else
-rm -f $TMP_FILE
+rm -f ${TMP_FILE}
 fi
 fi