The name of the physical display on which to draw.
If this environment variable is set, the shared library loader displays debugging information about the libraries as they're opened. The value can be a comma-separated list of the following:
  • all — display all debug messages.
  • help — display a help message, and then exit.
  • reloc — display relocation processing messages.
  • libs — display information about shared objects being opened.
  • statistics — display runtime linker statistics.
  • lazyload — print lazy-load debug messages.
  • debug — print various runtime linker debug messages.

A value of 1 (one) is the same as all.

Indicates to lpr to use rename() instead of link() or unlink().