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Shell Programming and Scripting
Running java class with a cron
Post 87602 by sanjustudy on Wednesday 26th of October 2005 05:40:51 AM
10-26-2005
Hai,
in ur java class ur specfying some thing to print on console but may be there may be no console
opened to print ur s.o.println from crontab u can't start application which have GUI interface if u really want to start up like then install screen.rpm and in the crontab before the script calling specify it as
25 * * * * root screen -d -m myclass.java
in ur java class ur specfying some thing to print on console but may be there may be no console
opened to print ur s.o.println from crontab u can't start application which have GUI interface if u really want to start up like then install screen.rpm and in the crontab before the script calling specify it as
25 * * * * root screen -d -m myclass.java
This User Gave Thanks to sanjustudy For This Post:
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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)