Re: Script challenge
On Sat, Jan 14, 2006 at 11:37:42AM +0100, John Smith wrote:
> Hi All,
>
> which heroe can tell me why the following does not work :
>
> #!/bin/sh
> cat <<EOF >newscriptfile.sh
> #!/bin/sh
> NOWS=$(date +%S)
> NOWS=${NOWS#0}
> NOWM=$(date +%M)
> NOWM=${NOWM#0}
> NOWH=$(date +%H)
> NOWH=${NOWH#0}
> FROMNOW=$1
>
> MINUTE=$((${NOWM} + ${FROMNOW}))
> MINUTE=$((${MINUTE} % 60))
> HOUR=$((${NOWM} + ${FROMNOW}))
> HOUR=$((${HOUR} / 60))
> HOUR=$((${NOWH} + ${HOUR}))
> HOUR=$((${HOUR} % 24))
> echo $HOUR" "$MINUTE
> EOF
>
> It's driving me nuts!!!
>
I don't know why it doesn't work (I know pretty little about shell
programming), but the following does work (for me, anyway):
#!/bin/sh
echo '#!/bin/sh
NOWS=$(date +%S)
NOWS=${NOWS#0}
NOWM=$(date +%M)
NOWM=${NOWM#0}
NOWH=$(date +%H)
NOWH=${NOWH#0}
FROMNOW=$1
MINUTE=$((${NOWM} + ${FROMNOW}))
MINUTE=$((${MINUTE} % 60))
HOUR=$((${NOWM} + ${FROMNOW}))
HOUR=$((${HOUR} / 60))
HOUR=$((${NOWH} + ${HOUR}))
HOUR=$((${HOUR} % 24))
echo $HOUR" "$MINUTE' >newscriptfile.sh
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--
David Jardine
"Running Debian GNU/Linux and
loving every minute of it." -L. von Sacher-M.(1835-1895)
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