Hi All
Some how, variables are not getting exported while running the script in cronjob. Variable value is coming blank. But the variables are geting the value when the same script I am running manually. Any idea why?
When running the script in cron-job
==================================... (7 Replies)
Hi
I have a shell script, it run ok if executed from the path it is located at but doesnot run when the same is tried through cron-job.
can someone help me please.
regards
gaurav shrinivas
Email address removed (8 Replies)
Hi All,
The script which i am using to SSH to remote server is working fine when i run is using ./ but when cron runs it it gives error that "ssh: not found"
please help!!! (3 Replies)
Hi
Im very new at working with unix and this problem I simply can not understand. I know there are a lot of threads about problems with shell scripts behaving differently when run from a terminal and from a cronjob. I have tried everything(almost) but I still havent cracked this problem.
Im... (15 Replies)
I have a very basic perl script that attempts to find if a process is running. If the process is not running then the script is supposed to start the process. If I execute the script from command line it works fine as expected. However if the script is executed via cronjob, the script cannot find... (1 Reply)
Hey all
Found this forum googling for solutions. Great community this!
Im looking for help trying to run a php script every 20 minutes.
The script basically has to loop continuously forever but inexplicably hangs every 30 minutes or so. I have not been able to debug the script and find... (2 Replies)
hi everyone I'm newbie in this forum hope I can get some help here :)
I have a command in crontab that executed every 1 minute
sometime this command need more than 1 minute to finish
the problem is, the crontab execute this command although it's not finish processing yet and causing the system... (7 Replies)
Hi,
I have a .ksh script which updates the database. The script is running fine manually but it is not running through cron.All the file permissions are fine.
The script contents are as below:
#!/usr/bin/ksh
ddate=`date +%Y%m%d`
echo $ddate
nohup sqlplus crm/crm @db_state_sync.sql >>... (3 Replies)
I have an Ubuntu machine that I'd like to update automatically. I've written an expect script to run the aptitude package manager and update my packages. Essentially it does:
aptitude update && aptitude upgrade while answering "yes" at the appropriate time.
It works quite nicely when run... (4 Replies)
i have written one script which is working fine when i run it manually but giving error when i schedule it in crontab.
cat SUMMARY.sh
#!/bin/bash
DT1=`date +%Y%m%d`
echo "Off PP TT" >>summary_$DT1.txt
cat ues1.txt_$DT1 >>summary_$DT1.txt
cat ues2.txt_$DT1... (2 Replies)
Discussion started by: scriptor
2 Replies
LEARN ABOUT X11R4
cron
cron(1M) System Administration Commands cron(1M)NAME
cron - clock daemon
SYNOPSIS
/usr/sbin/cron
DESCRIPTION
cron starts a process that executes commands at specified dates and times.
You can specify regularly scheduled commands to cron according to instructions found in crontab files in the directory
/var/spool/cron/crontabs. Users can submit their own crontab file using the crontab(1) command. Commands which are to be executed only once
can be submitted using the at(1) command.
cron only examines crontab or at command files during its own process initialization phase and when the crontab or at command is run. This
reduces the overhead of checking for new or changed files at regularly scheduled intervals.
As cron never exits, it should be executed only once. This is done routinely by way of the svc:/system/cron:default service. The file
/etc/cron.d/FIFO file is used as a lock file to prevent the execution of more than one instance of cron.
cron captures the output of the job's stdout and stderr streams, and, if it is not empty, mails the output to the user. If the job does not
produce output, no mail is sent to the user. An exception is if the job is an at(1) job and the -m option was specified when the job was
submitted.
cron and at jobs are not executed if your account is locked. Jobs and processses execute. The shadow(4) file defines which accounts are not
locked and will have their jobs and processes executed.
Setting cron Jobs Across Timezones
The timezone of the cron daemon sets the system-wide timezone for cron entries. This, in turn, is by set by default system-wide using
/etc/default/init.
If some form of daylight savings or summer/winter time is in effect, then jobs scheduled during the switchover period could be executed
once, twice, or not at all.
Setting cron Defaults
To keep a log of all actions taken by cron, you must specify CRONLOG=YES in the /etc/default/cron file. If you specify CRONLOG=NO, no log-
ging is done. Keeping the log is a user configurable option since cron usually creates huge log files.
You can specify the PATH for user cron jobs by using PATH= in /etc/default/cron. You can set the PATH for root cron jobs using SUPATH= in
/etc/default/cron. Carefully consider the security implications of setting PATH and SUPATH.
Example /etc/default/cron file:
CRONLOG=YES
PATH=/usr/bin:/usr/ucb:
This example enables logging and sets the default PATH used by non-root jobs to /usr/bin:/usr/ucb:. Root jobs continue to use
/usr/sbin:/usr/bin.
The cron log file is periodically rotated by logadm(1M).
FILES
/etc/cron.d Main cron directory
/etc/cron.d/FIFO Lock file
/etc/default/cron cron default settings file
/var/cron/log cron history information
/var/spool/cron Spool area
/etc/cron.d/queuedefs Queue description file for at, batch, and cron
/etc/logadm.conf Configuration file for logadm
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO svcs(1), at(1), crontab(1), sh(1), logadm(1M), svcadm(1M), queuedefs(4), shadow(4), attributes(5), smf(5)NOTES
The cron service is managed by the service management facility, smf(5), under the service identifier:
svc:/system/cron:default
Administrative actions on this service, such as enabling, disabling, or requesting restart, can be performed using svcadm(1M). The ser-
vice's status can be queried using the svcs(1) command.
DIAGNOSTICS
A history of all actions taken by cron is stored in /var/cron/log and possibly in /var/cron/olog.
SunOS 5.10 5 Aug 2004 cron(1M)