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Top Forums Shell Programming and Scripting Issue in running shell script in crontab Post 302804055 by Rajkumar Gandhi on Wednesday 8th of May 2013 03:22:43 AM
Old 05-08-2013
Java Issue in running shell script in crontab

I'm having a shell script which has to be run only once at the specified time.

Shell script is like following,
#!/bin/bash
db2 connect to XXX > connection_status.txt


This script is scheduled in crontab as following,

50 4 8 5 0 sh script.sh

scheduled script is run at the specified time and the connection_status.txt also created. But the file doesn't contain any content and file size is 0 byte.

Note: When I'm running the script as usual (without scheduling), Script runs fine and creates the connection_status.txt file with appropriate content.

Please help to know the reason why the scheduled script doesn't produce the expected result.

Thanks,
Rajkumar
 

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uudemon(4)						     Kernel Interfaces Manual							uudemon(4)

NAME
uudemon.admin, uudemon.cleanu, uudemon.hour, uudemon.poll - Administrative shell scripts for polling remote systems, cleaning up spool directories, reporting status to the system administrator, and routine invocations of the uuxqt and uusched daemons SYNOPSIS
These shell scripts reside in the following directory: /usr/lib/uucp DESCRIPTION
All the scripts can be run from the command line or can be run automatically by the cron daemon. To automatically run the scripts, remove the comment character (#) from the beginning of the relevant line in the /var/spool/cron/crontabs/uucp file. This script reports status to the system administrator. It issues the uustat command to find out the status of uucp jobs. It mails the results to the uucp login ID. The script may be modified to send mail to any login ID such as the uucp administrative login ID (uucpa) or root. This script cleans up the /var/spool/uucp and /var/spool/uucppublic directories by running the uucleanup command. The uucleanup com- mand is run with the following parameters: -C7, -D7, X2, -o2, -W1. This script runs the uusched and uuxqt daemons in the background. This script polls the systems listed in the /usr/lib/uucp/Poll file. The uudemon.poll script should be scheduled before the uudemon.hour script. This allows uudemon.poll to create any command files before cron runs the uudemon.hour script. FILES
Contains the uudemon.admin, uudemon.cleanu, uudemon.hour and uudemon.poll files. Contains the uucp file. RELATED INFORMATION
Commands: cron(8), uucleanup(8), uusched(8), uuxqt(1) Files: /usr/lib/uucp delim off uudemon(4)
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