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A command in a script not running in Crontab.
Post 302330644 by mystition on Thursday 2nd of July 2009 01:46:19 AM
07-02-2009
A command in a script not running in Crontab.
Hi,
I made this script for TRU Unix 5.1 OS based Node.
When the script was run manually all the commands were running properly. But when it was run from Crontab, one command is not running.
This command is not running when the script is running from Crontab:
# /usr/mg2/svi/svicom/svistatjo.x -j 20090702 -f stat_log_temp
(This is a application based command used ti fetch certain statistics of that application depending on the date)
I am using /bin/ksh shell in the script.The crontab I am using is for root user, and the command is also run by root
[ Following are the fixes that I have tried till now, but it has not done any good:
Fix 1:
I tried to find the directory from which the command is executing by the following way:
# cd /usr/mg2/svi/svicom
# which svistatjo.x
Output: /usr/mg2/svi/svicom/svistatjo.x
If the command 'which svistatjo.x' is executed from any other path, no ouput is obtained.
This is the reason the command i gave above was with the full path.
Fix 2:
I used the command this way in the script too, but it is still not runnng through crontab.
#su -c "svistatjo.x -j 20090702 -f stat_log_temp"
Also, Whenever I am running the script from Crontab, an error is coming in mail, something like :
"stty: tcgetattr: Not a typewriter
stty: tcgetattr: Not a typewriter
Not a terminal
Ambiguous output redirect. ", but I am not sure how this error is related to the command.
]
Please suggest modifications so that this command can be run from crontab also.
\\ Thanks in anticipation
I made this script for TRU Unix 5.1 OS based Node.
When the script was run manually all the commands were running properly. But when it was run from Crontab, one command is not running.
This command is not running when the script is running from Crontab:
# /usr/mg2/svi/svicom/svistatjo.x -j 20090702 -f stat_log_temp
(This is a application based command used ti fetch certain statistics of that application depending on the date)
I am using /bin/ksh shell in the script.The crontab I am using is for root user, and the command is also run by root
[ Following are the fixes that I have tried till now, but it has not done any good:
Fix 1:
I tried to find the directory from which the command is executing by the following way:
# cd /usr/mg2/svi/svicom
# which svistatjo.x
Output: /usr/mg2/svi/svicom/svistatjo.x
If the command 'which svistatjo.x' is executed from any other path, no ouput is obtained.
This is the reason the command i gave above was with the full path.
Fix 2:
I used the command this way in the script too, but it is still not runnng through crontab.
#su -c "svistatjo.x -j 20090702 -f stat_log_temp"
Also, Whenever I am running the script from Crontab, an error is coming in mail, something like :
"stty: tcgetattr: Not a typewriter
stty: tcgetattr: Not a typewriter
Not a terminal
Ambiguous output redirect. ", but I am not sure how this error is related to the command.
]Please suggest modifications so that this command can be run from crontab also.
\\ Thanks in anticipation
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LEARN ABOUT REDHAT
crond
CRON(8) System Manager's Manual CRON(8) NAME
cron - daemon to execute scheduled commands (Vixie Cron) SYNOPSIS
cron DESCRIPTION
Cron should be started from /etc/rc or /etc/rc.local. It will return immediately, so you don't need to start it with '&'. Cron searches /var/spool/cron for crontab files which are named after accounts in /etc/passwd; crontabs found are loaded into memory. Cron also searches for /etc/crontab and the files in the /etc/cron.d/ directory, which are in a different format (see crontab(5)). Cron then wakes up every minute, examining all stored crontabs, checking each command to see if it should be run in the current minute. When execut- ing commands, any output is mailed to the owner of the crontab (or to the user named in the MAILTO environment variable in the crontab, if such exists). Additionally, cron checks each minute to see if its spool directory's modtime (or the modtime on /etc/crontab) has changed, and if it has, cron will then examine the modtime on all crontabs and reload those which have changed. Thus cron need not be restarted whenever a crontab file is modified. Note that the Crontab(1) command updates the modtime of the spool directory whenever it changes a crontab. SEE ALSO
crontab(1), crontab(5) AUTHOR
Paul Vixie <paul@vix.com> 4th Berkeley Distribution 20 December 1993 CRON(8)