Linux in a Nutshell, Fourth Edition

Name

apmd

Synopsis

                  apmd [options]

System administration command. apmd handles events reported by the Advanced Power Management BIOS driver. The driver reports on battery level and requests to enter sleep or suspend mode. apmd will log any reports it gets via syslogd and take steps to make sure that basic sleep and suspend requests are handled gracefully. You can fine-tune the behavior of apmd by specifying an apmd_proxy command to run when it receives an event.

Options

-c n, --check n

Set the number of seconds to wait for an event before rechecking the power level. Default is to wait indefinitely. Setting this causes the battery levels to be checked more frequently.

-P command, --apmd_proxy command

Specify the apmd_proxy command to run when APM driver events are reported. This is generally a shell script. The command will be invoked with parameters indicating what kind of event was received. The parameters are listed in the next section.

-p n, --percentage n

Log information whenever the power changes by n percent. The default is 5. Values greater than 100 will disable logging of power changes.

-V, --version

Print version and exit.

-v, --verbose

Verbose mode; all events are logged.

-W, --wall

Use wall to alert all users of a low battery status.

-w n, --warn n

Log a warning at ALERT level when the battery charge drops below n percent. The default is 10. Negative values disable low battery level warnings.

-q, --quiet

Disable low battery level warnings.

-?, --help

Print help summary ...