diff --git a/README.md b/README.md
index cc02571..82c7464 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 #### Docker Ocie Image  
-Base image we use for our containers, Ocie itself is just a helper utility.    
-Default shell for Ubuntu is /bin/dash, this image sets /bin/sh to /bin/bash
+Base image we use for our containers, Ocie itself is just an overlay utility.    
+Default shell, symlink for /bin/sh, in Ubuntu is /bin/dash, this image chages the symlink to /bin/bash
     
 Note: no support provided, released on github for automated builds and registry publishing :D
     
diff --git a/src/usr/lib/ocie/include/config/apache b/src/usr/lib/ocie/include/config/apache
index 5f54630..dd38fb3 100644
--- a/src/usr/lib/ocie/include/config/apache
+++ b/src/usr/lib/ocie/include/config/apache
@@ -29,8 +29,7 @@ function add_cors()
     
 function reset_config()
 {
-    SITE_TEMPLATE=/etc/apache2/sites-available;
-    
+    local site_template=/etc/apache2/sites-available;
     if [[ -f "${APACHE_MODS}/rewrite.conf" ]];then
         mv -f "${APACHE_MODS}/rewrite.conf" "${APACHE_MODS}/rewrite.conf.previous";
     fi;
@@ -45,11 +44,11 @@ function reset_config()
     fi;
     if [[ -f "${APACHE_SITES}/000-default.conf" ]];then
         mv -f "${APACHE_SITES}/000-default.conf" "${APACHE_SITES}/000-default.conf.previous";
-        cp -f "${SITE_TEMPLATE}/000-default.conf.dist" "${APACHE_SITES}/000-default.conf";
+        cp -f "${site_template}/000-default.conf.dist" "${APACHE_SITES}/000-default.conf";
     fi;
     if [[ -f "${APACHE_SITES}/default-ssl.conf" ]];then
         mv -f "${APACHE_SITES}/default-ssl.conf" "${APACHE_SITES}/default-ssl.conf.previous";
-        cp -f "${SITE_TEMPLATE}/default-ssl.conf.dist" "${APACHE_SITES}/default-ssl.conf";
+        cp -f "${site_template}/default-ssl.conf.dist" "${APACHE_SITES}/default-ssl.conf";
     fi;
 }
     
@@ -69,7 +68,7 @@ else
         echo "Ocie: Config: Rewriting all requests to: [ https ]";
         add_default;
     fi;
-    if [[ ! "${REWRITE_INDEX}" == "" ]];then
+    if [[ ! -z "${REWRITE_INDEX}" ]];then
         echo "Ocie: Config: Rewriting all requests to: [ ${REWRITE_INDEX} ]";
         add_framework;
     fi;
@@ -77,15 +76,15 @@ else
         echo "Ocie: Config: Adding CORS config for JSON to enabled site";
         add_cors;
     fi;
-    if [[ ! "${REWRITE_EXT}" == "" ]];then
-        if [[ ! "${REWRITE_INDEX}" = "" ]];then
+    if [[ ! -z "${REWRITE_EXT}" ]];then
+        if [[ ! -z "${REWRITE_INDEX}" ]];then
             echo "Ocie: Config: Cannot configure both [ REWRITE_INDEX ] and [ REWRITE_EXT ], using [ REWRITE_INDEX ], value ${REWRITE_INDEX}";
         else
             echo "Ocie: Config: Rewriting all requests with the following extensions: [ ${REWRITE_EXT} ]";
             add_extension;
         fi;
     fi;
-    if [[ ! "${REWRITE_EXCLUDE}" == "" ]];then
+    if [[ ! -z "${REWRITE_EXCLUDE}" ]];then
         echo "Ocie: Config: Ecluding the following pattern from rewrite: [ ${REWRITE_EXCLUDE} ]";
         add_exclude;
     fi;
@@ -94,10 +93,10 @@ fi;
 # Test config and print results
 # Tomcat sources this script, only print if apache
 if [[ ! "${APP_TYPE}" == "tomcat" ]];then
-    HTTPD_CFG=$(ociectl --test);
-    if [[ ! -z "${HTTPD_CFG}" ]];then
+    local httpd_cfg=$(ociectl --test);
+    if [[ ! -z "${httpd_cfg}" ]];then
         echo "Ocie: Config: Test FAILED, reverting changes";
-        echo "Ocie: Config: Result: ${HTTPD_CFG}";
+        echo "Ocie: Config: Result: ${httpd_cfg}";
         reset_config;
         exit 1;
     fi;
diff --git a/src/usr/lib/ocie/include/config/tomcat b/src/usr/lib/ocie/include/config/tomcat
index 3c3d3e7..3660569 100644
--- a/src/usr/lib/ocie/include/config/tomcat
+++ b/src/usr/lib/ocie/include/config/tomcat
@@ -3,7 +3,7 @@
 . ${OCIE_LIB}/include/config/apache;
     
 # Tomcat specific
-APP_PROXIES="$(echo ${VADC_IP_ADDRESS// /|} | sed 's/\./\\./g' | sed 's|\/|\\/|g')";
+local app_proxies="$(echo ${VADC_IP_ADDRESS// /|} | sed 's/\./\\./g' | sed 's|\/|\\/|g')";
 if [[ -f "${OCIE_HOME}/conf/ocie-tomcat.init" ]];then
     reset_config;
 fi;
@@ -13,15 +13,15 @@ function apache_mod_jk()
     cp "${APACHE_MODS}/jk.conf.dist" "${APACHE_MODS}/jk.conf" >/dev/null 2>&1;
     cp "${APACHE_MODS}/jk.load.dist" "${APACHE_MODS}/jk.load" >/dev/null 2>&1;
 }
-
+    
 function tomcat_set_env()
 {
     echo "export JAVA_OPTS=\"${JAVA_OPTS} ${APP_PARAMS}\"" > ${CATALINA_HOME}/bin/setenv.sh
-    echo "export VADC_IP_REG=\"${APP_PROXIES}\"" >> ${CATALINA_HOME}/bin/setenv.sh
+    echo "export VADC_IP_REG=\"${app_proxies}\"" >> ${CATALINA_HOME}/bin/setenv.sh
     chown ${APP_OWNER}:${APP_GROUP} "${CATALINA_HOME}/bin/setenv.sh";
     chmod a+x "${CATALINA_HOME}/bin/setenv.sh";
 }
-
+    
 function tomcat_server_cfg()
 {
     if [[ -f "${CATALINA_HOME}/conf/server.xml" ]];then
@@ -31,23 +31,23 @@ function tomcat_server_cfg()
         cp "${CATALINA_HOME}/conf/server.xml.dist" "${CATALINA_HOME}/conf/server.xml" >/dev/null 2>&1;
     fi;
 }
-
+    
 # Set environment 
 tomcat_set_env;
 # Enable libapache2-mod-jk
 apache_mod_jk;
     
 # Ensure config is valid
-CATALINA_CFG=$(ociectl --test);
-if [[ ! -z "${CATALINA_CFG}" ]];then
+local catalina_cfg=$(ociectl --test);
+if [[ ! -z "${catalina_cfg}" ]];then
     echo "Ocie Config: Tomcat config test FAILED, reverting changes";
-    echo "Ocie Config: Result: ${CATALINA_CFG}";
+    echo "Ocie Config: Result: ${catalina_cfg}";
     reset_config;
     exit 1;
 fi;
     
 # Set ready
 echo "Ocie Config: Tomcat Config Test PASSED, using updated configuration";
-echo "Ocie Config: Tomcat RemoteIpValve configured with [internalProxies: ${APP_PROXIES}, remoteIpHeader: ${VADC_IP_HEADER}]";
+echo "Ocie Config: Tomcat RemoteIpValve configured with [internalProxies: ${app_proxies}, remoteIpHeader: ${VADC_IP_HEADER}]";
 echo "Ocie Config: Configured JAVA_OPTS with ${APP_PARAMS}";
 echo "#Tomcat Initialized" > ${OCIE_HOME}/conf/ocie-tomcat.init;
diff --git a/src/usr/lib/ocie/include/utils b/src/usr/lib/ocie/include/utils
index ac0ba9b..ed81d21 100644
--- a/src/usr/lib/ocie/include/utils
+++ b/src/usr/lib/ocie/include/utils
@@ -24,13 +24,13 @@ function print_msg()
 # Get sha1 OR sha256 signature of directory/file, default: sha1
 function get_signature()
 {
-    object="$1";
-    option="${2,,}";
+    local object="$1";
+    local option="${2,,}";
     if [[ -z "${option}" ]];then
-        option='sha1';
+        local option='sha1';
     fi;
     if [[ ! "${option}" == "sha1" ]] && [[ ! "${option}" == "sha256" ]];then
-        option='sha1';
+        local option='sha1';
     fi;
     if [[ -d "${object}" ]];then
         echo "$(find ${object} -type f -print0 | xargs -0 sha1sum | sort | sha1sum | cut -f1 -d' ')";