diff --git a/README.md b/README.md
index 4c11bac..94dcc5f 100644
--- a/README.md
+++ b/README.md
@@ -2,14 +2,14 @@ bes-build
 =========
 
 bes-build is a bash script to build bash program.  
-the building process simply consist to append shell script files from your `src/` project directory into a single `dist/project` executable file
+the building process simply consist to append shell script files from your `src/` project directory 
+into a single `dist/project` executable file
 
 ### Install
 
 ```
-wget https://raw.githubusercontent.com/meta-tech/bes-build/master/dist/bes-build
-chmod +x bes-build
-sudo mv bes-build /usr/local/bin
+wget https://raw.githubusercontent.com/meta-tech/bes-build/latest/dist/bes-build
+bash ./bes-build -i
 ```
 
 ### Usage
@@ -20,6 +20,8 @@ cd /home/repo/meta-tech/bes
 bes-build
 # you can now execute program with : 
 ./dist/bes
+# to display help execute :
+bes-build -h 
 ```
 
 ### Requirements
@@ -38,3 +40,10 @@ using bes-build script require you to conform to these following rules :
              |--- file3.sh
 ```
 * each `src/` shell file require a `shebang` on first line (**#!/bin/bash**)
+* src/main.sh file is append to the end of the build file
+* we strongly recommand you to use function and prefix function name
+```shell
+bes.install(){
+   ...
+}
+```
diff --git a/dist/bes-build b/dist/bes-build
index d2aab7a..4c835fd 100755
--- a/dist/bes-build
+++ b/dist/bes-build
@@ -110,9 +110,9 @@ bes.echo.state(){
 bes.echo.rs(){
     local rs=${1:-0}
     if [ "$rs" -eq 0 ]; then
-        echo -e "\n  ${Cdone}  done  ${Coff}"
+        echo -e "  ${Cdone}  done  ${Coff}"
     else 
-        echo -e "\n  ${Cfail}  failed  ${Coff}"
+        echo -e "  ${Cfail}  failed  ${Coff}"
     fi
 }
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -157,25 +157,26 @@ bes.color.map(){
 
 bes.install(){
     local path=${1:-/usr/local/bin}
-
+    local done=1
     bes.echo.title "Installing bes-build ${Coff}in" "$path"
 
     if [ -f "./bes-build" ]; then
         rm ./bes-build
     fi
-    wget -q https://git.pluie.org/meta-tech/bes-build/raw/master/dist/bes-build
+    wget -q https://git.pluie.org/meta-tech/bes-build/raw/latest/dist/bes-build
     if [ $? -eq 0 ]; then
         chmod +x ./bes-build
         if [ -d $path ]; then
-            bes.echo.action "install bes-build in ${Copt}$path/bes-build"
             sudo mv ./bes-build $path/bes-build
-            bes.echo.state $?
+            local done=$?
+            bes.echo.state $done
         else
             bes.echo.error "install directory do not exists : ${Cspe}$path"
         fi
     else 
         bes.echo.error "can not download latest version of bes-build"        
     fi
+    bes.echo.rs $done
 }
 
 bes.usage(){
@@ -194,7 +195,7 @@ bes.usage(){
     echo -e "${Coff}"
 }
 
-BES_BUILD_VERSION=0.3
+BES_BUILD_VERSION=0.4
           APP_DIR=$(pwd)
          APP_NAME=$(basename $(pwd)) 
           APP_BIN=$APP_DIR/dist/$APP_NAME
diff --git a/src/display.sh b/src/display.sh
index 2841d7c..89caeed 100755
--- a/src/display.sh
+++ b/src/display.sh
@@ -68,9 +68,9 @@ bes.echo.state(){
 bes.echo.rs(){
     local rs=${1:-0}
     if [ "$rs" -eq 0 ]; then
-        echo -e "\n  ${Cdone}  done  ${Coff}"
+        echo -e "  ${Cdone}  done  ${Coff}"
     else 
-        echo -e "\n  ${Cfail}  failed  ${Coff}"
+        echo -e "  ${Cfail}  failed  ${Coff}"
     fi
 }
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/src/install.sh b/src/install.sh
index 41e9895..1920cea 100644
--- a/src/install.sh
+++ b/src/install.sh
@@ -2,23 +2,24 @@
 
 bes.install(){
     local path=${1:-/usr/local/bin}
-
+    local done=1
     bes.echo.title "Installing bes-build ${Coff}in" "$path"
 
     if [ -f "./bes-build" ]; then
         rm ./bes-build
     fi
-    wget -q https://git.pluie.org/meta-tech/bes-build/raw/master/dist/bes-build
+    wget -q https://git.pluie.org/meta-tech/bes-build/raw/latest/dist/bes-build
     if [ $? -eq 0 ]; then
         chmod +x ./bes-build
         if [ -d $path ]; then
-            bes.echo.action "install bes-build in ${Copt}$path/bes-build"
             sudo mv ./bes-build $path/bes-build
-            bes.echo.state $?
+            local done=$?
+            bes.echo.state $done
         else
             bes.echo.error "install directory do not exists : ${Cspe}$path"
         fi
     else 
         bes.echo.error "can not download latest version of bes-build"        
     fi
+    bes.echo.rs $done
 }
diff --git a/src/main.sh b/src/main.sh
index 539fd1c..7a4384b 100755
--- a/src/main.sh
+++ b/src/main.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-BES_BUILD_VERSION=0.3
+BES_BUILD_VERSION=0.4
           APP_DIR=$(pwd)
          APP_NAME=$(basename $(pwd)) 
           APP_BIN=$APP_DIR/dist/$APP_NAME