SYNOPSIS
acpi_available
DESCRIPTION
acpi_available checks whether the ACPI ("Advanced Configuration and Power Interface") subsystem is available, as evidenced by the presence of the /proc/acpi directory.
OPTIONS
None.EXIT STATUS
0 (true) ACPI subsystem is available 1 (false) ACPI subsystem is not available 2 usage error (arguments supplied)
FILES
/proc/acpi ACPI status information file