Unlike the System V printing system, CUPS allows printer names to
contain any printable character except SPACE, TAB, "/", or "#".
Also, printer and class names are not case-sensitive.
The System V versions of these commands are disable and
enable. They have been renamed to avoid conflicts with the
bash(1) build-in commands of the same name.
The CUPS versions of disable and enable may ask the
user for an access password depending on the printing system
configuration. This differs from the System V versions which
require the root user to execute these commands.