Checking Permissions

When signing on as root on a security hardened system and creating the robelle directory it may be that only the root user who can run whatever software you are installing.

You can tell a system that has been hardened typically with a umask command, which will return:

077
What ends up happening when you make a directory with mkdir is the permissions end up being 700 or rwx for root, --- for group, and --- for user. The solution to this is to change the permissions:
chmod -R 755 /opt/robelle