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Reccursive "at" command

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# 1  
Old 09-26-2006
Java Reccursive "at" command
Hi friends Smilie ,

Daily I've monitor one datafile in certain location at any time.
For this Iam writing one script us at command, which is as follows:
Script name: monitor.sh

---------------------------------------------------------------
!#/usr/bin/ksh

DATE=`dateformat`
DATAFILE=`ls -lrt filename* | grep "$DATE" | awk '{ print $98} '

if [ -f $DATAFILE ] ; then
ls -lrt $DATAFILE > data_$DATE.rpt ## datafile details are redirecting to report file
at 0001 tomorrow < monitor.sh ##For tomorrow schedule
else
at now < monitor.sh ## repeated till datafile found
exit
fi
---------------------------------------------------------------
The problem is, it is not executing more than 2 or 3 times.

Are there any problem with the above code?
Will this overload the cpu usage?

Pls help me
Ganapati
# 2  
Old 09-27-2006
Java
any help on this will be much appreciated!
Please advise me!
# 3  
Old 09-27-2006
Please review our rules.

Quote:
(4) Do not 'bump up' questions if they are not answered promptly. No duplicate or cross-posting and do not report a post where your goal is to get an answer more quickly.
Thanks
ZB
# 4  
Old 09-27-2006
Apologies for this,
I'll try to avoid this kind of mistakes in future.

Thanks and Regards,
Ganapati
# 5  
Old 09-27-2006
If the file is not found, the -f test will fail.
Enclose the filename between quotes.
Code:
if [ -f "$DATAFILE" ] ; then

Replace the at now mechanism with a loop an sleep commands.
Code:
!#/usr/bin/ksh

DATE=`dateformat`

while [ 1 ]    ## Infinite loop
do
   DATAFILE=`ls -lrt filename* | grep "$DATE" | awk '{ print $9} '

   if [ -n "$DATAFILE" ] ; then    ## If file found (DATAFILE not empty)
      ls -lrt $DATAFILE > data_$DATE.rpt ## datafile details are redirecting to report file
      at 0001 tomorrow < monitor.sh ##For tomorrow schedule
      break     ## leaves infinite loop
   fi
   sleep 30   ## Wait for 30 seconds before testing file
done

Last edited by aigles; 10-11-2006 at 09:18 AM.. Reason: Correction on field number inside DATAFILE assignment
# 6  
Old 09-28-2006
Error
Thanks a lot friend.

But Im running different scripts like the same using at command.
This is causing me the problem. I want to know how many different scripts I can run using different recursive 'at' command.
In this case I dont have crontab permission and also I dont want to use crontab.

pls guide me!

Many Thanks and Regards,
Ganapati
# 7  
Old 10-11-2006
Java
The following code Iam running to monitor avalability of the datafile. Because when ever this datafile arrives, immediately one sql load job will load this datafile and move to some other location. So daily it is required to capture the timings of the datafile arrive.
The following scripting will expiring after 10 or 15 minutes and not monitoring the timings of the datafile. Iam unable to find out the reason!

Could any one please help me in this regards?

#!/usr/bin/ksh

export DATE=`date '+%b %e'`
export REP_DATE=`date '+%d-%b-%Y_%HHr-%MMin'`
cd /export/home/gisscpbat/FTP/IN/


while [ 1 ] ## Infinite loop
do

DATAFILE=`ls -lrt ancr* | grep -iw "$DATE" | awk '{print $8}'`

if [ -f "$DATAFILE" ] ; then
ls -lrt ancr* | grep -iw "$DATE" > /export/home/ITC_loke1/CRED0071/report/CRED0071_$REP_DATE.rpt
at 0001 tomorrow < CRED0071.sh
break
fi
sleep 10 ## Wait for 10 seconds before testing file

done
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