diff --git a/pmm_psmdb-pbm_setup/Dockerfile b/pmm_psmdb-pbm_setup/Dockerfile
index bca3144..d6f8df2 100644
--- a/pmm_psmdb-pbm_setup/Dockerfile
+++ b/pmm_psmdb-pbm_setup/Dockerfile
@@ -48,22 +48,22 @@ RUN set -ex; \
                           percona-server-mongodb-server-${PSMDB_VERSION}.el9 \
                           percona-server-mongodb-mongos-${PSMDB_VERSION}.el9 ; \
     fi && \
-    if [ $PBM_VERSION == "latest" ]; then \
+    if [ "$PBM_VERSION" == "latest" ]; then \
         yum -y install percona-backup-mongodb ; \
     else \
         yum -y install percona-backup-mongodb-${PBM_VERSION}.el9 ; \
     fi 
 
-RUN if [[ $PMM_CLIENT_VERSION == http* ]]; then \
+RUN if [[ "$PMM_CLIENT_VERSION" == http* ]]; then \
         yum -y install pmm-client && \
         curl -Lf -o /tmp/pmm-client.tar.gz $PMM_CLIENT_VERSION && \
         cd /tmp && tar -xvf pmm-client.tar.gz --transform 's,^/*[^/]*,/pmm-client,S' && \
         cd /tmp/pmm-client && ./install_tarball && cd ../ && rm -rf pmm* ;\
     elif [[ "$PMM_CLIENT_VERSION" =~ 3-dev-latest|latest ]]; then \
         yum -y install pmm-client ; \
-    elif [[ $PMM_CLIENT_VERSION =~ pmm3-rc ]]; then \
-        percona-release enable original testing \
-        yum update --refresh -y \
+    elif [[ "$PMM_CLIENT_VERSION" = "pmm3-rc" ]]; then \
+        percona-release enable original testing  && \
+        yum update --refresh -y && \
         yum -y install pmm-client ; \
     else \
         yum -y install pmm-client-${PMM_CLIENT_VERSION}-6.el9 ; \
diff --git a/pmm_qa/pmm-framework.py b/pmm_qa/pmm-framework.py
index 73c4e41..a7a1602 100755
--- a/pmm_qa/pmm-framework.py
+++ b/pmm_qa/pmm-framework.py
@@ -346,7 +346,7 @@ def execute_shell_scripts(shell_scripts, project_relative_scripts_dir, env_vars,
 
     # Execute each shell script
     for script in shell_scripts:
-        result = ''
+        result: subprocess.CompletedProcess
         try:
             print(f'running script {script}')
             # Change directory to where the script is located
@@ -355,20 +355,13 @@ def execute_shell_scripts(shell_scripts, project_relative_scripts_dir, env_vars,
             result = subprocess.run(['bash', script], capture_output=True, text=True, check=True)
             print("Output:")
             print(result.stdout)
+            print(f"Shell script '{script}' executed successfully.")
         except subprocess.CalledProcessError as e:
-            print("Error:")
-            print(e.stderr)
+            print(f"Shell script '{script}' failed with return code: {e.returncode}! \n {e.stderr} \n Output: \n {e.stdout} ")
+            exit(e.returncode)
         except Exception as e:
             print("Unexpected error occurred:", e)
         finally:
-            # Get the return code of the process
-            return_code = result.returncode
-            if return_code == 0:
-                print(f"Shell script '{script}' executed successfully.")
-            else:
-                print(f"Shell script '{script}' failed with return code: {return_code}! \n {result.stderr}")
-                exit(return_code)
-
             # Return to the original working directory
             os.chdir(original_dir)
 
@@ -639,4 +632,4 @@ def setup_database(db_type, db_version=None, db_config=None, args=None):
     except Exception as e:
         print("An unexpected error occurred:", e)
         parser.print_help()
-        exit(1)
+        exit(1)
\ No newline at end of file