acpitool

AcpiTool is a Linux ACPI client. It's a small command line application, intended to be a replacement for the apm tool. Besides "basic" ACPI information like battery status, AC presence, putting the laptop to sleep, Acpitool also supports various extensions for Toshiba, Asus and IBM Thinkpad laptops, allowing you to change the LCD brightness level, toggle fan on/off, and more.

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