On 2002.09.22_13:00:44_+0000, Anders Åkesson wrote:
> Hi!
>
Hi,
> I have wondered why my firewall never updates it's hw or sys clock
> although it should. I found that the updatetime script in
> /etc/multicron-d doesn't work.
>
> updatetime () {
>
> [ -f /etc/default/rcS ] && . /etc/default/rcS
> [ "$GMT" = "-u" ] && GMT="--utc"
> if [ -n "`ps axc | grep xntpd`" ]; then
> hwclock --systohc $GMT
> else
> [ "$lrp_DATE_SERVER" != "" ] \
> && rdate -s $lrp_DATE_SERVER \
> && sleep 2 && hwclock --systohc $GMT
> fi
> }
>
> This code will ALWAYS go into the first option of the if-statement.
>
> The length of "`ps axc | grep xntpd`" will always be non-zero because
> 'grep xntpd' will be launched as a new process due to the pipe.
>
No, the shell will return the value from the grep appropriately. I
haven't tested this with ash (the shell used by Bering). Only with ksh,
so I may be wrong. Following commands prove my statement:
$ ps axc | grep xntpd
$ echo $?
1
$ ps axc | grep getty
494 tty1 S 0:00 getty
495 tty2 S 0:00 getty
[...]
$ echo $?
0
CMIIW
>
> /Anders
>
--
H. D. Lee
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