diff --git a/.github/workflows/docker-image.yml b/.github/workflows/docker-image.yml
index 426d073..c21bec3 100644
--- a/.github/workflows/docker-image.yml
+++ b/.github/workflows/docker-image.yml
@@ -15,12 +15,12 @@ jobs:
     - name: Build the main Docker image (android-sdk)
       run: docker build -t android-sdk ./android-sdk
     - name: Display tool version information of the main Docker image (android-sdk)
-      run: cmd=$(cat ./android-sdk/version_inspector.sh) && docker run -i --rm android-sdk bash -c "$cmd"
+      run: cmd=$(cat ./android-sdk/version-inspector.sh) && docker run -i --rm android-sdk bash -c "$cmd"
     - name: Build the sub Docker image (android-sdk-vnc)
       run: docker build -t android-sdk-vnc ./android-sdk/vnc
     - name: Display tool version information of the sub Docker image (android-sdk-vnc)
-      run: cmd=$(cat ./android-sdk/vnc/version_inspector.sh) && docker run -i --rm android-sdk-vnc bash -c "$cmd"
+      run: cmd=$(cat ./android-sdk/vnc/version-inspector.sh) && docker run -i --rm android-sdk-vnc bash -c "$cmd"
     - name: Build the sub Docker image (android-sdk-firebase-test-lab)
       run: docker build -t android-sdk-firebase-test-lab ./android-sdk/firebase-test-lab
     - name: Display tool version information of the sub Docker image (android-sdk-firebase-test-lab)
-      run: cmd=$(cat ./android-sdk/firebase-test-lab/version_inspector.sh) && docker run -i --rm android-sdk-firebase-test-lab bash -c "$cmd"
+      run: cmd=$(cat ./android-sdk/firebase-test-lab/version-inspector.sh) && docker run -i --rm android-sdk-firebase-test-lab bash -c "$cmd"
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 50dfdb8..1d503e4 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -11,13 +11,13 @@ Contributions are made by forking this repository, making the changes, and openi
 The [primary Docker image](./android-sdk/Dockerfile) was created in barebone, for the sake of providing Android environment only.  If you have other needs, please build a dedicated Docker image:
 
 * Create a specific directory under [android-sdk](./android-sdk) directory and a `Dockerfile` inside it.
-* A `version_inspector.sh` file is necessary to print out tools' version information.
+* A `version-inspector.sh` file is necessary to print out tools' version information.
 * Update corresponding CI workflow: [GitHub Action](https://github.com/thyrlian/AndroidSDK/blob/master/.github/workflows/docker-image.yml).
-* Add corresponding Docker image building and publishing steps to [`image_publisher.sh`](./image_publisher.sh) script.
+* Add corresponding Docker image building and publishing steps to [`image-publisher.sh`](./image-publisher.sh) script.
 
 ## Accept New SDK Licenses
 
-Update the script [`android-sdk/license_acceptor.sh`](./android-sdk/license_accepter.sh) with the new agreement checksums.  Do not remove pre-existing license agreement acceptances.
+Update the script [`android-sdk/license-accepter.sh`](./android-sdk/license-accepter.sh) with the new agreement checksums.  Do not remove pre-existing license agreement acceptances.
 
 If a new agreement is accepted, a file should be created in the directory [`EULA`](./EULA).  If there is an update, ensure the agreements contain a suffix with the timestamp in the format `-YYYYMMDD`.
 
diff --git a/README.md b/README.md
index 013161c..1b9d4bf 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ Android SDK development environment Docker image
 
 [![Docker Badge](https://dockerico.blankenship.io/image/thyrlian/android-sdk)](https://hub.docker.com/r/thyrlian/android-sdk)
 
-<img src="https://github.com/thyrlian/AndroidSDK/blob/master/images/logo.png?raw=true" width="200">
+<img src="https://github.com/thyrlian/AndroidSDK/blob/master/assets/logo.png?raw=true" width="200">
 
 <a href="https://youtu.be/YwBAqMDYFCU"><img src="https://pbs.twimg.com/media/DODnbwmXkAAbXuM.jpg" alt="Conference Talk" width="600"></a>
 
@@ -146,7 +146,7 @@ docker run -it -v $(pwd)/sdk:/opt/android-sdk:ro thyrlian/android-sdk /bin/bash
 docker run -it -v $(pwd)/sdk:/opt/android-sdk thyrlian/android-sdk /bin/bash
 
 # to keep and reuse Gradle cache
-docker run -it -v $(pwd)/sdk:/opt/android-sdk -v $(pwd)/gradle_caches:/root/.gradle/caches thyrlian/android-sdk /bin/bash
+docker run -it -v $(pwd)/sdk:/opt/android-sdk -v $(pwd)/gradle-caches:/root/.gradle/caches thyrlian/android-sdk /bin/bash
 
 # to stop and remove container
 # when the image was pulled from a registry
@@ -159,7 +159,7 @@ docker stop $(docker ps -a | grep 'android-sdk' | awk '{ print $1 }') &> /dev/nu
 
 ### Accepting Licenses
 
-A helper script is provided at [`/opt/license_accepter.sh`](https://github.com/thyrlian/AndroidSDK/blob/master/android-sdk/license_accepter.sh) for accepting the SDK and its various licenses.  This is helpful in non-interactive environments such as CI builds.
+A helper script is provided at [`/opt/license-accepter.sh`](https://github.com/thyrlian/AndroidSDK/blob/master/android-sdk/license-accepter.sh) for accepting the SDK and its various licenses.  This is helpful in non-interactive environments such as CI builds.
 
 ## SSH
 
@@ -168,9 +168,9 @@ It is also possible if you wanna connect to container via SSH.  There are three
 * Build an image on your own, with a built-in `authorized_keys`
 
   ```bash
-  # Put your `id_rsa.pub` under `android-sdk/accredited_keys` directory (as many as you want)
+  # Put your `id_rsa.pub` under `android-sdk/accredited-keys` directory (as many as you want)
 
-  # Build an image, then an `authorized_keys` file will be composed automatically, based on the keys from `android-sdk/accredited_keys` directory
+  # Build an image, then an `authorized_keys` file will be composed automatically, based on the keys from `android-sdk/accredited-keys` directory
   docker build -t android-sdk android-sdk
   
   # Run a container
@@ -216,7 +216,7 @@ And, in case you need, you can still attach to the running container (not via ss
   docker exec -it <container_id> /bin/bash
   ```
 
-<img src="https://github.com/thyrlian/AndroidSDK/blob/master/images/SSH.png?raw=true">
+<img src="https://github.com/thyrlian/AndroidSDK/blob/master/assets/SSH.png?raw=true">
 
 ## VNC
 
@@ -249,7 +249,7 @@ emulator -avd test -no-audio -no-boot-anim -accel on -gpu swiftshader_indirect &
 
 For more details, please refer to [Emulator section](https://github.com/thyrlian/AndroidSDK#emulator).
 
-<img src="https://github.com/thyrlian/AndroidSDK/blob/master/images/vnc.png?raw=true">
+<img src="https://github.com/thyrlian/AndroidSDK/blob/master/assets/vnc.png?raw=true">
 
 ### VNC client recommendation
 
@@ -306,10 +306,10 @@ Fortunately, you can easily build such a mirror server docker image on your own.
   docker build --build-arg GRADLE_DOWNLOAD_AMOUNT=<amount_of_gradle_distributions_to_be_downloaded> -t gradle-server gradle-server
   ```
 
-Preferably, you should run the [download script](https://github.com/thyrlian/AndroidSDK/blob/master/gradle-server/gradle_downloader.sh) locally, and mount the download directory to the container.
+Preferably, you should run the [download script](https://github.com/thyrlian/AndroidSDK/blob/master/gradle-server/gradle-downloader.sh) locally, and mount the download directory to the container.
 
   ```bash
-  gradle-server/gradle_downloader.sh [DOWNLOAD_DIRECTORY] [DOWNLOAD_AMOUNT]
+  gradle-server/gradle-downloader.sh [DOWNLOAD_DIRECTORY] [DOWNLOAD_AMOUNT]
   docker run -d -p 80:80 -p 443:443 -v [DOWNLOAD_DIRECTORY]:/var/www/gradle.org/public_html/distributions gradle-server
   ```
 
@@ -521,7 +521,7 @@ Now you can for instance run UI tests on the emulator (just remember, the perfor
 
 If you encounter an error "***Process system isn't responding***" in the emulator, like below:
 
-<img src="https://github.com/thyrlian/AndroidSDK/blob/master/images/emulator_error_process_not_responding.png?raw=true">
+<img src="https://github.com/thyrlian/AndroidSDK/blob/master/assets/emulator-error-process-not-responding.png?raw=true">
 
 You could try:
 
@@ -627,9 +627,9 @@ docker pull thyrlian/android-sdk-firebase-test-lab
 # we'll persist all your gcloud configuration which would be created at ~/.config/gcloud/
 
 # spin up a container with interactive mode
-docker run -it -v $(pwd)/sdk:/opt/android-sdk -v <your_private_key_dir>/firebase.json:/root/firebase.json -v $(pwd)/gcloud_config:/root/.config/gcloud thyrlian/android-sdk-firebase-test-lab /bin/bash
+docker run -it -v $(pwd)/sdk:/opt/android-sdk -v <your_private_key_dir>/firebase.json:/root/firebase.json -v $(pwd)/gcloud-config:/root/.config/gcloud thyrlian/android-sdk-firebase-test-lab /bin/bash
 # or spin up a container with SSH
-docker run -d -p 2222:22 -v $(pwd)/sdk:/opt/android-sdk -v <your_private_key_dir>/firebase.json:/root/firebase.json -v $(pwd)/gcloud_config:/root/.config/gcloud -v $(pwd)/authorized_keys:/root/.ssh/authorized_keys thyrlian/android-sdk-firebase-test-lab
+docker run -d -p 2222:22 -v $(pwd)/sdk:/opt/android-sdk -v <your_private_key_dir>/firebase.json:/root/firebase.json -v $(pwd)/gcloud-config:/root/.config/gcloud -v $(pwd)/authorized_keys:/root/.ssh/authorized_keys thyrlian/android-sdk-firebase-test-lab
 
 # authorize access to Google Cloud Platform with a service account (by its private key)
 gcloud auth activate-service-account -q --key-file /root/firebase.json
@@ -883,16 +883,16 @@ sudo netstat -tulpn | grep LISTEN
 
 * Go to the top-level directory of this project
 
-* Execute [`image_publisher.sh`](https://github.com/thyrlian/AndroidSDK/blob/master/image_publisher.sh) script
+* Execute [`image-publisher.sh`](https://github.com/thyrlian/AndroidSDK/blob/master/image-publisher.sh) script
 
   ```console
-  ./image_publisher.sh [TAG]
+  ./image-publisher.sh [TAG]
   ```
 
-* Execute [`version_inspector.sh`](https://github.com/thyrlian/AndroidSDK/blob/master/android-sdk/version_inspector.sh) script inside a docker container from local machine to check versions of tools
+* Execute [`version-inspector.sh`](https://github.com/thyrlian/AndroidSDK/blob/master/android-sdk/version-inspector.sh) script inside a docker container from local machine to check versions of tools
 
   ```console
-  cmd=$(cat ./android-sdk/version_inspector.sh) && docker run -it --rm android-sdk bash -c "$cmd"
+  cmd=$(cat ./android-sdk/version-inspector.sh) && docker run -it --rm android-sdk bash -c "$cmd"
   ```
 
 * Update [Changelog](https://github.com/thyrlian/AndroidSDK/blob/master/CHANGELOG.md) based on the versions info printed by the above commands
diff --git a/android-sdk/Dockerfile b/android-sdk/Dockerfile
index 7d69081..0e644b0 100644
--- a/android-sdk/Dockerfile
+++ b/android-sdk/Dockerfile
@@ -59,8 +59,8 @@ ENV LD_LIBRARY_PATH=${ANDROID_HOME}/emulator/lib64:${ANDROID_HOME}/emulator/lib6
 ENV QTWEBENGINE_DISABLE_SANDBOX=1
 
 # accept the license agreements of the SDK components
-ADD license_accepter.sh /opt/
-RUN chmod +x /opt/license_accepter.sh && /opt/license_accepter.sh $ANDROID_HOME
+ADD license-accepter.sh /opt/
+RUN chmod +x /opt/license-accepter.sh && /opt/license-accepter.sh $ANDROID_HOME
 
 # setup adb server
 EXPOSE 5037
@@ -68,7 +68,7 @@ EXPOSE 5037
 # install and configure SSH server
 EXPOSE 22
 ADD sshd-banner /etc/ssh/
-ADD accredited_keys /tmp/
+ADD accredited-keys /tmp/
 RUN apt-get update && \
     apt-get install -y --no-install-recommends openssh-server supervisor locales && \
     mkdir -p /var/run/sshd /var/log/supervisord && \
diff --git a/android-sdk/accredited_keys/.gitignore b/android-sdk/accredited-keys/.gitignore
similarity index 100%
rename from android-sdk/accredited_keys/.gitignore
rename to android-sdk/accredited-keys/.gitignore
diff --git a/android-sdk/firebase-test-lab/version_inspector.sh b/android-sdk/firebase-test-lab/version-inspector.sh
similarity index 100%
rename from android-sdk/firebase-test-lab/version_inspector.sh
rename to android-sdk/firebase-test-lab/version-inspector.sh
diff --git a/android-sdk/license_accepter.sh b/android-sdk/license-accepter.sh
similarity index 100%
rename from android-sdk/license_accepter.sh
rename to android-sdk/license-accepter.sh
diff --git a/android-sdk/version_inspector.sh b/android-sdk/version-inspector.sh
similarity index 100%
rename from android-sdk/version_inspector.sh
rename to android-sdk/version-inspector.sh
diff --git a/android-sdk/vnc/Dockerfile b/android-sdk/vnc/Dockerfile
index b8d8f8e..2da39e3 100644
--- a/android-sdk/vnc/Dockerfile
+++ b/android-sdk/vnc/Dockerfile
@@ -14,18 +14,18 @@ LABEL maintainer="thyrlian@gmail.com"
 ENV USER=root
 ENV DISPLAY=:1
 EXPOSE 5901
-ADD vncpass.sh /tmp/
-ADD vncserver_daemon.sh /usr/local/bin/
+ADD vnc-pass.sh /tmp/
+ADD vncserver-daemon.sh /usr/local/bin/
 ADD watchdog.sh /usr/local/bin/
-ADD supervisord_vncserver.conf /etc/supervisor/conf.d/
+ADD supervisord-vncserver.conf /etc/supervisor/conf.d/
 RUN apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends xfce4 xfce4-goodies xfonts-base dbus-x11 tightvncserver expect xauth && \
     touch /root/.Xauthority && chmod 600 /root/.Xauthority && \
     xauth generate :1 . trusted && \
-    chmod +x /usr/local/bin/vncserver_daemon.sh && \
-    chmod +x /tmp/vncpass.sh; sync && \
-    /tmp/vncpass.sh && \
-    rm /tmp/vncpass.sh && \
+    chmod +x /usr/local/bin/vncserver-daemon.sh && \
+    chmod +x /tmp/vnc-pass.sh; sync && \
+    /tmp/vnc-pass.sh && \
+    rm /tmp/vnc-pass.sh && \
     apt-get remove -y expect && apt-get autoremove -y && \
     FILE_SSH_ENV="/root/.ssh/environment" && \
     echo "DISPLAY=:1" >> $FILE_SSH_ENV
diff --git a/android-sdk/vnc/supervisord_vncserver.conf b/android-sdk/vnc/supervisord-vncserver.conf
similarity index 91%
rename from android-sdk/vnc/supervisord_vncserver.conf
rename to android-sdk/vnc/supervisord-vncserver.conf
index 4e98022..e631e8d 100644
--- a/android-sdk/vnc/supervisord_vncserver.conf
+++ b/android-sdk/vnc/supervisord-vncserver.conf
@@ -4,7 +4,7 @@ pidfile=/var/run/supervisord.pid
 user=root
 
 [program:vncserver]
-command = /usr/local/bin/vncserver_daemon.sh
+command = /usr/local/bin/vncserver-daemon.sh
 user=root
 autostart=true
 autorestart=true
diff --git a/android-sdk/vnc/version_inspector.sh b/android-sdk/vnc/version-inspector.sh
similarity index 100%
rename from android-sdk/vnc/version_inspector.sh
rename to android-sdk/vnc/version-inspector.sh
diff --git a/android-sdk/vnc/vncpass.sh b/android-sdk/vnc/vnc-pass.sh
similarity index 100%
rename from android-sdk/vnc/vncpass.sh
rename to android-sdk/vnc/vnc-pass.sh
diff --git a/android-sdk/vnc/vncserver_daemon.sh b/android-sdk/vnc/vncserver-daemon.sh
similarity index 100%
rename from android-sdk/vnc/vncserver_daemon.sh
rename to android-sdk/vnc/vncserver-daemon.sh
diff --git a/images/SSH.png b/assets/SSH.png
similarity index 100%
rename from images/SSH.png
rename to assets/SSH.png
diff --git a/images/emulator_error_process_not_responding.png b/assets/emulator-error-process-not-responding.png
similarity index 100%
rename from images/emulator_error_process_not_responding.png
rename to assets/emulator-error-process-not-responding.png
diff --git a/images/logo.png b/assets/logo.png
similarity index 100%
rename from images/logo.png
rename to assets/logo.png
diff --git a/images/vnc.png b/assets/vnc.png
similarity index 100%
rename from images/vnc.png
rename to assets/vnc.png
diff --git a/gradle-server/Dockerfile b/gradle-server/Dockerfile
index a9ee4da..dcc97d8 100644
--- a/gradle-server/Dockerfile
+++ b/gradle-server/Dockerfile
@@ -17,7 +17,7 @@ RUN apt-get update && \
 # install and configure the Apache Web Server
 ARG GRADLE_DOWNLOAD_AMOUNT=14
 ENV GRADLE_DIST /var/www/gradle.org/public_html/distributions
-ADD gradle_downloader.sh $GRADLE_DIST/
+ADD gradle-downloader.sh $GRADLE_DIST/
 RUN apt-get install -y apache2 && \
     sed -i 's%\(^\s*DocumentRoot\s*\).*%\1/var/www/gradle.org/public_html%g' /etc/apache2/sites-available/000-default.conf && \
     echo "\n<Directory /var/www/gradle.org>\n        Options Indexes FollowSymLinks\n</Directory>\n" >> /etc/apache2/apache2.conf && \
@@ -28,7 +28,7 @@ RUN apt-get install -y apache2 && \
     sed -i 's%\(^\s*SSLCertificateFile\s*\).*%\1/etc/apache2/ssl/apache.crt%g' /etc/apache2/sites-available/default-ssl.conf && \
     sed -i 's%\(^\s*SSLCertificateKeyFile\s*\).*%\1/etc/apache2/ssl/apache.key%g' /etc/apache2/sites-available/default-ssl.conf && \
     a2ensite default-ssl.conf && \
-    chmod +x $GRADLE_DIST/gradle_downloader.sh && \
-    $GRADLE_DIST/gradle_downloader.sh $GRADLE_DIST $GRADLE_DOWNLOAD_AMOUNT
+    chmod +x $GRADLE_DIST/gradle-downloader.sh && \
+    $GRADLE_DIST/gradle-downloader.sh $GRADLE_DIST $GRADLE_DOWNLOAD_AMOUNT
 EXPOSE 80 443
 CMD ["/usr/sbin/apachectl", "-D", "FOREGROUND"]
diff --git a/gradle-server/gradle_downloader.sh b/gradle-server/gradle-downloader.sh
similarity index 100%
rename from gradle-server/gradle_downloader.sh
rename to gradle-server/gradle-downloader.sh
diff --git a/image_publisher.sh b/image-publisher.sh
similarity index 95%
rename from image_publisher.sh
rename to image-publisher.sh
index 3bbd3fe..facbaff 100755
--- a/image_publisher.sh
+++ b/image-publisher.sh
@@ -18,8 +18,8 @@ SUB_IMAGE_VNC_DIR=vnc
 SUB_IMAGE_FIREBASE_TEST_LAB_NAME=android-sdk-firebase-test-lab
 SUB_IMAGE_FIREBASE_TEST_LAB_DIR=firebase-test-lab
 TAG_LATEST=latest
-KEYS_DIR=accredited_keys
-TEMP_DIR=temp_accredited_keys
+KEYS_DIR=accredited-keys
+TEMP_DIR=temp-accredited-keys
 
 # extract base image name and tag from Dockerfile
 regex_name_and_tag='FROM[[:blank:]]([^:]*):([^:]*)'
@@ -36,7 +36,7 @@ cd $MAIN_IMAGE_DIR
 echo "Pulling the latest base image..."
 docker pull $BASE_IMAGE_NAME:$BASE_IMAGE_TAG
 
-echo "Hiding files inside accredited_keys directory..."
+echo "Hiding files inside accredited-keys directory..."
 rm -r $TEMP_DIR 2> /dev/null
 mkdir -p $TEMP_DIR
 if [ ! -z "$(ls $KEYS_DIR)" ]; then
@@ -100,7 +100,7 @@ echo "Pushing the sub Firebase Test Lab image to Docker Hub..."
 docker push $DOCKER_HUB_ACCOUNT/$SUB_IMAGE_FIREBASE_TEST_LAB_NAME:$TAG
 docker push $DOCKER_HUB_ACCOUNT/$SUB_IMAGE_FIREBASE_TEST_LAB_NAME:$TAG_LATEST
 
-echo "Unhiding files inside accredited_keys directory..."
+echo "Unhiding files inside accredited-keys directory..."
 if [ ! -z "$(ls $TEMP_DIR)" ]; then
   mv -v $TEMP_DIR/* $KEYS_DIR
 fi