Office_Networks/Kanzlei-Kiel/sbin/synctime
2019-05-31 13:40:39 +02:00

24 lines
504 B
Bash
Executable File

#!/bin/bash
export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
NOW=$(date +%s)
INTERVAL=$[ 8 * 60 * 60 ] # 8 hs
CONTROL=/tmp/.lastSyncTime
sync_time() {
ntpdate-debian -s || exit 1
hwclock --systohc || exit 1
touch ${CONTROL}
}
[ ! -f ${CONTROL} ] && sync_time && exit 0
SYNCRONIZED=$(stat -c %Y ${CONTROL})
SECONDS=$[ ${NOW} - ${SYNCRONIZED} ]
[ ${SECONDS} -gt ${INTERVAL} ] && sync_time && exit 0
[ ${SECONDS} -lt 0 ] && sync_time && exit 0
exit 0