Adding enable apmd

enable-apmd.ksh

@@ -0,0 +1,39 @@
+#!/bin/ksh
+
+# enable-apmd.ksh
+# Copyright (c) 2023, Scott C. MacCallum (scm@sdf.org)
+# All rights reserved.
+
+# Redistribution and use of this software in source and binary forms, with or
+# without modification, are permitted provided that the following conditions
+# are met:
+
+# * Redistributions of source code must retain the above copyright notice,
+#      this list of conditions and the following disclaimer.
+
+# * Neither the name of Scott C. MacCallum nor the names of its
+#      contributors may be used to endorse or promote products derived from
+#      this software without specific prior written permission of Scott C.
+#      MacCallum.
+
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+
+# Enable the power manager and start it at boot. Have it adjust automatically
+# to power needs. Put the computer in suspend mode when 15% of the battery is
+# left
+
+rcctl enable apmd
+rcctl set apmd flags -A -z 15
+rcctl start apmd
+
+exit 0