Fix skip naming for zip/move creation

Avoid "file not found" zip file creation and remove if there are no
PEM files created, eg if we have a pre defined pub file

.shellcheckrc

@@ -0,0 +1,2 @@
+shell=bash
+external-sources=true

bin/create_user.sh

@@ -421,14 +421,24 @@ done;
 if [ ${INFO} -eq 1 ]; then
 	exit;
 fi;
+# check if there are any files in the SSH_KEYGEN_FOLDER, else skip zip file creation and file move
+has_pem_files=0;
+if (shopt -s nullglob dotglob; f=("${SSH_KEYGEN_FOLDER}"*".pem"*); ((${#f[@]}))); then
+	has_pem_files=1;
+fi;
 # zip everything and remove data in ssh key folder, delete output file with passwords
 if [ ${TEST} -eq 0 ]; then
-	zip -r \
-		"${ROOT_FOLDER}${output_zip_folder}${output_zip}" \
-		"${input_file}" \
-		"${output_file}" \
-		"${SSH_KEYGEN_FOLDER}" \
-		-x\*.gitignore;
+	if [ "${has_pem_files}" -eq 1 ]; then
+		zip -r \
+			"${ROOT_FOLDER}${output_zip_folder}${output_zip}" \
+			"${input_file}" \
+			"${output_file}" \
+			"${SSH_KEYGEN_FOLDER}" \
+			-x\*.gitignore;
+		echo "Download: ${ROOT_FOLDER}${output_zip_folder}${output_zip}";
+	else
+		echo "Skip ZIP file creation, no pem files";
+	fi;
 else
 	echo "zip -r \\"
 	echo "${ROOT_FOLDER}${output_zip_folder}${output_zip} \\"
@@ -436,15 +446,19 @@ else
 	echo "${output_file} \\"
 	echo "${SSH_KEYGEN_FOLDER} \\"
 	echo "-x\*.gitignore;"
+	echo "Download: ${ROOT_FOLDER}${output_zip_folder}${output_zip}";
 fi;
-echo "Download: ${ROOT_FOLDER}${output_zip_folder}${output_zip}";
 # cleam up user log file and ssh keys
 if [ ${TEST} -eq 0 ]; then
-	# move pub to created folders
-	mv "${ROOT_FOLDER}${SSH_KEYGEN_FOLDER}"*.pub "${ROOT_FOLDER}${SSH_KEYGEN_FOLDER_CREATED_PUB}";
-	# delete the rest
-	rm "${ROOT_FOLDER}${output_file}";
-	rm "${ROOT_FOLDER}${SSH_KEYGEN_FOLDER}"*;
+	if [ "${has_pem_files}" -eq 1 ]; then
+		# move pub to created folders
+		mv "${ROOT_FOLDER}${SSH_KEYGEN_FOLDER}"*.pub "${ROOT_FOLDER}${SSH_KEYGEN_FOLDER_CREATED_PUB}";
+		# delete the rest
+		rm "${ROOT_FOLDER}${output_file}";
+		rm "${ROOT_FOLDER}${SSH_KEYGEN_FOLDER}"*;
+	else
+		echo "Skip pub file move and cleanup, no pem files";
+	fi;
 else
 	echo "$> mv ${ROOT_FOLDER}${SSH_KEYGEN_FOLDER}*.pub ${ROOT_FOLDER}${SSH_KEYGEN_FOLDER_CREATED_PUB};";
 	echo "$> rm ${ROOT_FOLDER}${output_file}";