diff --git a/README.md b/README.md
index 5bc8a66..fc11c38 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@
 
 Toolbox to help developers and open source referents to have cleaner projects in _GitHub_ organizations, and more.
 
-Toolbox is mainly written in _Shell_ because this language is very efficient for files processing and provides a strong and rich standard API with cool primitives. Contains also _Ruby_ scripts. _Ruby_ are shiny gems, I love them. _Python_ is also used.
+Toolbox is mainly written in _Shell_ because this language is very efficient for files processing and provides a strong and rich standard API with cool primitives. It helps also to call system primitives easily. Contains also _Ruby_ scripts. _Ruby_ are shiny gems, I love them. _Python_ is also used.
 
 # Environment
 
@@ -100,6 +100,22 @@ Table of Contents
 
 # The "diver" of source code and commits
 
+## Prerequisites
+
+Some components must be available (dry run script will help to find the ones missing):
+- Ruby (version 2.7.1)
+- Bash (version 3.2.5)
+- Python3 (version 3.8.5)
+- Git (version 2.32.0)
+- GH (version 1.31.1)
+- Gitleaks (version 8.3.0)
+- Octokit Ruby gem (version 4.20.0)
+- Cloc (version 1.88)
+
+This project expects to have this tools available and already added in your system.
+Thus there is not composition nor aggregation (mere or not) about them.
+None of them have been modified nor distributed.
+
 ## File of words
 
 Some features parse a text file containing the words to look for in sources or git logs.
@@ -255,6 +271,17 @@ bash extract-emails-from-history.sh  --project path/to.git/project --loglimit gi
 The log limit is the value to pass to the `git log` command, e.g. _2.weeks_ or _3.years_.
 _path/to/the/project_ points to the root of the project to analyse.
 
+### Count lines of code in a directory
+
+_Keywords: #cloc #metrics #KPI #APP_
+
+You can use one script to compute lines of code thanks to [cloc](https://github.com/AlDanial/cloc) program.
+It will generate a report with all the metrics you may need.
+
+```bash
+bash lines-count.sh --target "absolute/path/to/target"
+```
+
 # Play with GitHub web API
 
 ## Prerequisites
@@ -267,6 +294,10 @@ _path/to/the/project_ points to the root of the project to analyse.
 - Define the _GitHub_ organization name in the _configuration.rb_ file for the `GITHUB_ORGANIZATION_NAME` variable. It will allow to send requests to query and modify your organization.
 - Define also the logins of the GitHub adminsitrators of your organization so as to prevent to change their permisssion for example.
 
+This project expects to have this tools available and already added in your system.
+Thus there is not composition nor aggregation (mere or not) about them.
+None of them have been modified nor distributed.
+
 ## Prepare project
 
 ```shell
@@ -437,6 +468,10 @@ Some configuration details must be defined (in _configuration.rb), like:
 2. `REPOSITORIES_CLONE_LOCATION_PATH` location of the clone sif you want to make a dump of the organisation repositories
 3. `REPOSITORIES_CLONE_URL_JSON_KEY` to choose the JSON key to get the repository URL from GitHub API
 
+This project expects to have this tools available and already added in your system.
+Thus there is not composition nor aggregation (mere or not) about them.
+None of them have been modified nor distributed.
+
 ## Prepare project
 
 ```shell
@@ -525,6 +560,10 @@ You need to define in the _configuration.rb_ files the Github organisation at **
 - Create a [GitLab personal token](https://gitlab.com/-/profile/personal_access_tokens) and define it in the _configuration.rb_ file for the `GILAB_PERSONAL_ACCESS_TOKEN` variable.
 - Define the GitLab organization id in the _configuration.rb_ file for the `GITLAB_ORGANIZATION_ID` variable. It will allow to send requests to query and modify your organization.
 
+This project expects to have this tools available and already added in your system.
+Thus there is not composition nor aggregation (mere or not) about them.
+None of them have been modified nor distributed.
+
 ## Prepare project
 
 ```ruby
@@ -603,6 +642,11 @@ pip install pytest
 pip install beautifulsoup4
 ```
 
+This project expects to have this tools available and already added in your system.
+None of them have been modified nor distributed.
+It could be seen as a [mere aggregation](https://www.gnu.org/licenses/gpl-faq.html#MereAggregation) of components, you can get licenses details in THIRD-PARTY.txt and licenses folder.
+
+
 ## Fill the configuration file
 
 Before to use the tools, the file 'config.ini' is at the root of the project, you have to personalize this file.
diff --git a/toolbox/diver/dry-run.sh b/toolbox/diver/dry-run.sh
index a452338..237c9a1 100755
--- a/toolbox/diver/dry-run.sh
+++ b/toolbox/diver/dry-run.sh
@@ -9,7 +9,7 @@
 
 # Since...............: 10/03/2023
 # Description.........: Make a dry-run of the diver module to check if everything is ready to use
-# Version.............: 1.0.0
+# Version.............: 1.1.0
 
 set -eu
 
@@ -112,6 +112,7 @@ CheckIfFileExists "./find-credentials-in-files.sh"
 CheckIfFileExists "./find-credits-in-files.sh"
 CheckIfFileExists "./find-missing-developers-in-git-commits.sh"
 CheckIfFileExists "./list-contributors-in-history.sh"
+CheckIfFileExists "./lines-count.sh"
 
 echo -e "\nCheck utilitary scripts..."
 CheckIfFileExists "./utils/extract-contributors-lists.rb"
@@ -150,6 +151,9 @@ CheckIfRuntimeExists "Gitleaks" "gitleaks version" "8.3.0"
 echo -e "\nCheck for Octokit..."
 CheckIfRuntimeExists "Octokit (Ruby gem)" "gem list | grep octokit" "4.20.0"
 
+echo -e "\nCheck for cloc..."
+CheckIfRuntimeExists "cloc" "cloc --version" "1.88"
+
 # Conclusion
 # ----------
 
diff --git a/toolbox/diver/lines-count.sh b/toolbox/diver/lines-count.sh
new file mode 100755
index 0000000..bb40860
--- /dev/null
+++ b/toolbox/diver/lines-count.sh
@@ -0,0 +1,158 @@
+#!/bin/bash
+# Software Name: floss-toolbox
+# SPDX-FileCopyrightText: Copyright (c) 2020-2023 Orange
+# SPDX-License-Identifier: Apache-2.0
+#
+# This software is distributed under the Apache 2.0 license.
+#
+# Author: Pierre-Yves LAPERSONNE <pierreyves(dot)lapersonne(at)orange(dot)com> et al.
+
+# Version.............: 1.0.0
+# Since...............: 18/07/2023
+# Description.........: Counts liens of cound for a target directory
+#
+# Usage: bash lines-count.sh --target TARGET
+#
+# Exit codes:
+#       0 - normal exit
+#       1 - problem with given parameters
+#
+
+set -euo pipefail # set -euxo pipefail
+
+VERSION="1.0.0"
+SCRIPT_NAME="lines-count.sh"
+
+# -------------
+# Configuration
+# -------------
+
+NORMAL_EXIT_CODE=0
+BAD_ARGUMENTS_EXIT_CODE=1
+
+# Folder fo generated files
+TEMP_FOLDER="./data"
+
+# Prefix for generated files
+GENERATED_FILES_PREFIX="$$-lines-count"
+
+# Report file with metrics
+REPORT_METRIC_FILE="$TEMP_FOLDER/$GENERATED_FILES_PREFIX-report.txt"
+
+# ---------
+# Functions
+# ---------
+
+# \fn DisplayUsages
+# \brief Displays an help message and exists
+DisplayUsages(){
+    echo "***********************************************"
+    echo "$SCRIPT_NAME - Version $VERSION"
+    echo "***********************************************"
+    echo "USAGE:"
+    echo "bash $SCRIPT_NAME --target TARGET"
+    echo -e "\t --target.........: TARGET must point to a directory to scan for lines and count them (recursive)"
+}
+
+# \fn NormalExit
+# \brief Exits with NORMAL_EXIT_CODE code
+NormalExit(){
+    exit $NORMAL_EXIT_CODE
+}
+
+# \fn BadArgumentsExit
+# \brief Exits with BAD_ARGUMENTS_EXIT_CODE code
+BadArgumentsExit(){
+    exit $BAD_ARGUMENTS_EXIT_CODE
+}
+
+# \fn BadPreconditionsExit
+# \brief Exits with BAD_PRECONDITION_EXIT_CODE code
+BadPreconditionsExit() {
+    exit $BAD_PRECONDITION_EXIT_CODE
+}
+
+# \fn CleanFiles
+# \brief If existing removes the work files
+CleanFiles() {
+    if [ -f $REPORT_METRIC_FILE ]; then
+        rm $REPORT_METRIC_FILE
+    fi
+}
+
+# \fn PrepareFiles
+# \brief If existing removes the work files and then creates them
+PrepareFiles() {
+    CleanFiles
+    touch $REPORT_METRIC_FILE
+}
+
+# ----------------
+# Step 0 - Prepare
+# ----------------
+
+# Check the args numbers and display usage if needed
+if [ "$#" -ne 2 ]; then
+    DisplayUsages
+    NormalExit
+fi
+
+# Get target
+if [ "$1" = "--target"  ]; then
+    if [ "$2" ]; then
+	    directory_to_scan=$2
+    else
+        DisplayUsages
+        BadArgumentsExit
+    fi
+else
+    DisplayUsages
+    BadArgumentsExit
+fi
+
+# Check if target is directory
+if [ ! -d "$directory_to_scan" ]; then
+    echo "💥 Error: Target is not a directory ($directory_to_scan)."
+    BadArgumentsExit
+fi
+
+# Run!
+SECONDS=0
+
+echo "**************************************************"
+echo "$SCRIPT_NAME - Version $VERSION"
+echo "**************************************************"
+
+echo -e "\n"
+
+echo "📋 Directory to scan is to analyse is $directory_to_scan"
+echo "📋 Prepare logs"
+PrepareFiles
+
+echo -e "\n"
+
+# ------------------------------------------------
+# Step 1 - Count lines of target and store results
+# ------------------------------------------------
+
+echo "🍥 Counting lines and store in $directory_to_scan"
+
+cloc "$directory_to_scan" > "$REPORT_METRIC_FILE"
+
+echo -e "👌 Counting of lines is done\n"
+
+# ------------------------------------------------------------
+# Step 2 - Metrics (words and files counts, hits, duration...)
+# ------------------------------------------------------------
+
+script_duration=$SECONDS
+echo "📈 Elapsed time.............................................: $(($script_duration / 60))' $(($script_duration % 60))''"
+
+# The end!
+
+echo -e "\nReport available in $REPORT_METRIC_FILE:"
+cat $REPORT_METRIC_FILE
+
+echo -e "\nEnd of $SCRIPT_NAME\n"
+CleanFiles
+NormalExit