I have rPi B+ running ArchLinux with kernel Linux comp001 3.18.6-2-ARCH #1 PREEMPT Sun Feb 8 09:43:43 MST 2015 armv6l GNU/Linux with Real Time Clock hardware RTC Pi. However, I would like to check if there is internet connection at boot time with running ntp client. If ntp client connects to ntp server and fetches clock, I do now want to sync clock with hardware. I want to use hw clock only when internet connection (ntp client check return code) is offline. I've built a service, which runs ok, but I do not know how to check if ntp client was launched without any problems. How do I chechk that? Ok, I have been working on following script with corrected spaces and still does not work:#!/bin/shif [ ?('modprobe -v rtc_ds1307') = 0 ]; then    # rtc is connected and working, use it    echo RTC Hardware connected, getting time    systemctl disable ntpd.service    systemctl stop ntpd.service    echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-1/new_device    hwclock -selse    # rtc is offline / not connected, get time via ntp    echo RTC Hardware disconnected/battery dead/offline, use NTP    systemctl enable ntpd.service    systemctl start ntpd.servicefiWhy does exeuction of script fails in first 3rd line with:./script_rtc.sh: line 3: syntax error near unexpected token `'modprobe -v rtc_ds1307''./script_rtc.sh: line 3: `if [?('modprobe -v rtc_ds1307')=0]; then'
script does not execute
arch linux;raspberry pi;ntp;clock