From 8ae5eca160cf6ba99c091d8e9f981eb1222221c1 Mon Sep 17 00:00:00 2001
From: B Stack <bgstack15@gmail.com>
Date: Sun, 9 Jun 2019 23:01:49 -0400
Subject: initial commit

---
 on-battery-time.sh | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100755 on-battery-time.sh

(limited to 'on-battery-time.sh')

diff --git a/on-battery-time.sh b/on-battery-time.sh
new file mode 100755
index 0000000..6e901dc
--- /dev/null
+++ b/on-battery-time.sh
@@ -0,0 +1,50 @@
+#!/bin/sh
+# File: /usr/local/bin/on-battery-time.sh
+# Author: bgstack15
+# Startdate: 2019-06-09 22:35
+# Title: Report how long this system has been on battery or AC power
+# Package: on-battery-time
+# Purpose:
+# History:
+# Usage:
+# Reference:
+#    https://stackoverflow.com/questions/12199631/convert-seconds-to-hours-minutes-seconds/18683834#18683834
+# Improve:
+# Dependencies:
+#    bc
+#    date
+#    the udev rules from 99-on-battery-time.rules
+# Documentation:
+
+OBT_INFILE=/var/log/battery.log
+
+# FUNCTIONS
+convertsecs() {
+    _h=$( expr $1 / 3600 )
+    _m=$( expr $1  % 3600 / 60 )
+    _s=$( expr $1 % 60 )
+    printf "%02d:%02d:%02d\n" ${_h} ${_m} ${_s}
+}
+
+# learn most recent utility time
+last_utility_time="$( { tac "${OBT_INFILE}" | awk '/utility power/{print $2}' ; echo 0 ; } | head -n1 )"
+
+# learn most recent battery time
+last_battery_time="$( { tac "${OBT_INFILE}" | awk '/on battery/{print $2}' ; echo 0 ; } | head -n1 )"
+
+# learn current time
+OBT_current_time="$( date "+%s" )"
+
+if test ${last_utility_time} -ge ${last_battery_time} ;
+then
+   OBT_last="${last_utility_time}"
+   OBT_phrase="utility power"
+else
+   OBT_last="${last_battery_time}"
+   OBT_phrase="on battery"
+fi
+
+OBT_seconds="$( printf "%s-%s\n" "${OBT_current_time}" "${OBT_last}" | bc )"
+
+printf "%s seconds: %s\n" "${OBT_phrase}" "${OBT_seconds}"
+convertsecs "${OBT_seconds}"
-- 
cgit