The linux system command to create zip single or multiple files are as follows :

zip zip_file_name.zip file_name1.ext file_name2.ext file_name3.ext

If the files are in another folder and you see those file names if the downloaded zip file in which you wish not to see these files, then use the following command :

zip zip_file_name.zip file_name1.ext file_name2.ext file_name3.ext