previously i can load from shell. but however when i change the file permissions, chmod. i'm unable to load from the shell again. i need advises on how to change it back. thank you
actually, you don't have to create /tmp, it's already created (owned by root), and any shell user should have write permissions to it; if you can't create files in /tmp, talk to your admin and have them fix the problem
alternatively, you can create your own temp directory in your home directory and point temp-path to it