diff --git a/installAndRun.sh b/installAndRun.sh
index 5f6216f..0bd57d8 100755
--- a/installAndRun.sh
+++ b/installAndRun.sh
@@ -10,12 +10,16 @@ handle_error () {
 # Change the working directory to the script's directory, when running from another location.
 cd "${0%/*}" || handle_error "Could not change-dir to this script's dir!" 1
 
-justInstall=0
+justRun=0
+avoidReInstallingPublicationsRetriever=0
 
 if [[ $# -eq 1 ]]; then
-	justInstall=$1
-elif [[ $# -gt 1 ]]; then
-	echo -e "Wrong number of arguments given: ${#}\nPlease execute it like: script.sh <justInstall: 0 | 1>";	exit 2
+	justRun=$1
+elif [[ $# -eq 2 ]]; then
+  justRun=$1
+  avoidReInstallingPublicationsRetriever=$2
+elif [[ $# -gt 2 ]]; then
+	echo -e "Wrong number of arguments given: ${#} (more than 2)\nPlease execute it like: script.sh <justRun: 0 | 1> <avoidReInstallingPublicationsRetriever: 0 | 1>";	exit 2
 fi
 
 # Check of the "inputData.txt" file exist, if not, ask to fill it.
@@ -46,31 +50,39 @@ fi
 
 gradleVersion="7.6"
 
-if [[ justInstall -eq 0 ]]; then
+if [[ justRun -eq 0 ]]; then
 
-  if [ ! -d libs ]; then
-    mkdir libs || handle_error "The directory \"libs\" could not be created! Exiting.." 3
+  if [[ avoidReInstallingPublicationsRetriever -eq 1 ]]; then
+    if [[ ! -f ./libs/publications_retriever-1.0-SNAPSHOT.jar ]]; then
+      avoidReInstallingPublicationsRetriever=0; # In case the jar-file does not exists, then make sure we follow the normal procedure, independently from what the user requested.
+    fi
   fi
 
-  cd libs || exit 4
-  git clone https://github.com/LSmyrnaios/PublicationsRetriever.git # We assume there is no previously source-code here, if so, it will be overwritten.
+  if [[ avoidReInstallingPublicationsRetriever -eq 0 ]]; then
 
-  # Keep a backup of the previous JAR file, if it exists.
-  if [ -f ./publications_retriever-1.0-SNAPSHOT.jar ]; then
-    mv ./publications_retriever-1.0-SNAPSHOT.jar ./publications_retriever-1.0-SNAPSHOT_BACKUP.jar
+      if [ ! -d libs ]; then
+        mkdir libs || handle_error "The directory \"libs\" could not be created! Exiting.." 3
+      fi
+      cd libs || exit 4
+      git clone https://github.com/LSmyrnaios/PublicationsRetriever.git # We assume there is no previously source-code here, if so, it will be overwritten.
+
+      # Keep a backup of the previous JAR file, if it exists.
+      if [ -f ./publications_retriever-1.0-SNAPSHOT.jar ]; then
+        mv ./publications_retriever-1.0-SNAPSHOT.jar ./publications_retriever-1.0-SNAPSHOT_BACKUP.jar
+      fi
+
+      cd PublicationsRetriever && sudo apt install -y maven && mvn clean install
+
+      # Copy the created JAR file to the top libs directory.
+      cp target/publications_retriever-1.0-SNAPSHOT.jar ../publications_retriever-1.0-SNAPSHOT.jar
+
+      # Delete the directory with the source-code.
+      cd ../ && rm -rf PublicationsRetriever
+
+      # Clean, (re)build and run the project.
+      cd ../
   fi
 
-  cd PublicationsRetriever && sudo apt install -y maven && mvn clean install
-
-  # Copy the created JAR file to the top libs directory.
-  cp target/publications_retriever-1.0-SNAPSHOT.jar ../publications_retriever-1.0-SNAPSHOT.jar
-
-  # Delete the directory with the source-code.
-  cd ../ && rm -rf PublicationsRetriever
-
-  # Clean, (re)build and run the project.
-  cd ../
-
   if [[ ! -d /opt/gradle/gradle-${gradleVersion} ]]; then
     wget https://services.gradle.org/distributions/gradle-${gradleVersion}-bin.zip
     echo -e "\nAsking for sudo, in order to install 'gradle'..\n"