Hi,
My requirement is to start a program at a future time x and stop
it at time x+delta. Can someone tell me how I can do it
using shell scripts.

TIA,
R C

R C V wrote:
>
> My requirement is to start a program at a future time x and stop
> it at time x+delta. Can someone tell me how I can do it
> using shell scripts.

if delta is >= 1 Minute:

man cron

--
Best regards | Monica Lewinsky's X-Boyfriend's
Cyrus | Wife for President

Possibly the cron is a better solution, but I like the shell

set -x # for debug only

#x='2008/03/28 22:40:28'
x=`date -d+20sec "+%Y/%m/%d %H:%M:%S"`
delta='0 day 0 hour 0 min 15 sec'

x=`date -d "$x" +%s`
delta=`date -d "1969-12-30 21:00:00 +$delta" +%s`

echo x=$x\s delta=$delta\s

read -t $(($x-`date +%s`)) </dev/tty59

date;echo -e '\astart program &'

read -t $delta </dev/tty59

date;echo -e '\akill signal program'



>R C V wrote:
> My requirement is to start a program at a future time x and
stop
> it at time x+delta. Can someone tell me how I can do it
> using shell scripts.

On Mar 18, 1:58 pm, R C V <rss...@gmail.com> wrote:
> Hi,
> My requirement is to start a program at a future time x and stop
> it at time x+delta. Can someone tell me how I can do it
> using shell scripts.
>
> TIA,
> R C


Cron s me schedule it at a future time , but does not let me kill
it after
a specified "duration".. Can someone throw some more light ?

In you script, start a subshell to kill it.
Example:
(read -t $delta </dev/tty59;kill SIG $$)&

At your choice, read or sleep...



R C V wrote:
> On Mar 18, 1:58 pm, R C V <rss...@gmail.com> wrote:
> > Hi,
> > My requirement is to start a program at a future time x and stop
> > it at time x+delta. Can someone tell me how I can do it
> > using shell scripts.
> >
> > TIA,
> > R C
>
>
> Cron s me schedule it at a future time , but does not let me kill
> it after
> a specified "duration".. Can someone throw some more light ?

On 2008-03-19, R C V wrote:
> On Mar 18, 1:58 pm, R C V <rss...@gmail.com> wrote:
>> Hi,
>> My requirement is to start a program at a future time x and stop
>> it at time x+delta. Can someone tell me how I can do it
>> using shell scripts.
>
> Cron s me schedule it at a future time , but does not let me kill
> it after
> a specified "duration".. Can someone throw some more light ?

Put the check into the script:

{
# put the script here
: ...
} &
sleep $delta
kill $!

--
Chris F.A. Johnson, author <http://cfaj.freeshell.org/shell/>
Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)
===== My code in this post, if any, assumes the POSIX locale
===== and is released under the GNU General Public Licence

On Tue, 18 Mar 2008 17:10:09 -0700, R C V wrote:

> On Mar 18, 1:58 pm, R C V <rss...@gmail.com> wrote:
>> Hi,
>> My requirement is to start a program at a future time x and stop
>> it at time x+delta. Can someone tell me how I can do it using shell
>> scripts.
>>
>> TIA,
>> R C
>
>
> Cron s me schedule it at a future time , but does not let me kill it
> after
> a specified "duration".. Can someone throw some more light ?

http://stromberg.dnsalias.org/~strombrg/maxtime.html