rrdtool/uptime.sh

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#!/bin/sh
#
# Copyright (c) 2019-2022 Mischa Peters <mischa @ openbsd.amsterdam>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#
test -n "$1" || exit 1
HOST="$1"
AUTHPASS="tropic shark reefs"
USER="random"
PRIVPASS="equ5xerhiffid7klevuk"
UPTIMEINFO="/tmp/${HOST}-uptime.txt"
rm -rf ${UPTIMEINFO}
TICKS=$(snmp get -A "${AUTHPASS}" -l authPriv -u ${USER} -X "${PRIVPASS}" ${HOST} hrSystemUptime.0 | awk -F"[()]" '{print $2}')
DAYS=$(echo "${TICKS}/8640000" | bc -l)
HOURS=$(echo "0.${DAYS##*.} * 24" | bc -l)
MINUTES=$(echo "0.${HOURS##*.} * 60" | bc -l)
SECS=$(echo "0.${MINUTES##*.} * 60" | bc -l)
test -n "${DAYS%.*}" && printf '%s days, ' "${DAYS%.*}" > ${UPTIMEINFO}
printf '%02d\\:%02d\\:%02d\n' "${HOURS%.*}" "${MINUTES%.*}" "${SECS%.*}" >> ${UPTIMEINFO}