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.TH powernap 8 "2 Jul 2009" powernap "powernap"
.SH NAME
powernap - have the system "take a power nap"; this can be a user defined ACTION_METHOD in \fI/etc/powernap/config\fP among [best-effort, suspend, hibernate, poweroff, powersave]
.SH DESCRIPTION
powernap will run when \fBpowernapd\fP(8) has determined that an action needs to be taken according to its configured parameters. The action to be taken, among [best-effort, suspend, hibernate, poweroff], is determined in \fI/etc/powernap/config\fP. By default, the action will be \fBbest-effort\fP.
When the ACTION_METHOD is \fBbest-effort\fP, and if the file \fI/etc/powernap/action\fP is executable, then the powernap binary will run it when called. Otherwise, powernap will run one of:
* pm-suspend
* pm-hibernate
* poweroff
depending on your hardware's capabilities, as determined by \fBpm-is-supported\fP(1).
You may do one of:
1) Write your own custom at \fI/etc/powernap/action\fP and make it executable
2) Replace \fI/etc/powernap/action\fP with an executable script or binary
3) Symlink \fI/etc/powernap/action\fP to some other executable script or binary
When ACTION_METHOD is \fBpowersave\fP, then powernap binary will execute \fBpm-suspend\fP.
When ACTION_METHOD is \fBpowersave\fP, then powernap binary will execute \fBpm-hibernate\fP.
When ACTION_METHOD is \fBpowersave\fP, then powernap binary will execute \fBpoweroff\fP.
When ACTION_METHOD is \fBpowersave\fP, then powernap binary will execute \fBpm-powersave\fP and pass an argument (true) to execute all the available scripts at \fI/usr/lib/pm-utils/power.d/\fP and \fI/etc/pm/power.d/\fP. The latter will contain scripts shipped with powernap.
.TP
\fIhttp://launchpad.net/powernap\fP
.PD
.SH FILES
\fI/etc/powernap/action\fP, \fI/proc/acpi/sleep\fP
.SH SEE ALSO
\fBpowernapd\fP(8), \fBpm-is-supported\fP(1), \fBethtool\fP(8)
.SH AUTHOR
This manpage and the utility was written by Dustin Kirkland <kirkland@canonical.com> for Ubuntu systems (but may be used by others). Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 3 published by the Free Software Foundation.
On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.
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