acpi_available (1) Linux Manual Page
acpi_available – test whether ACPI subsystem is available Synopsisacpi_available Descriptionacpi_available checks whether the ACPI ("Advanced Configuration and Power Interface") subsystem is available, as evidenced by the presence of the /proc/acpi directory. OptionsNone. Exit Status0 (true) ACPI subsystem is available 1 (false) ACPI subsystem is not available 2 usage error (arguments supplied)Files/proc/acpi ACPI status information fileAuthorThis…
