Hi all,
I have a solris 10 machine and i am facing some strange issues.
My sys user cron is not executing.
Can any one help on this issue?
the cron process is also running. but whatever i schedule in the sys user cron, it is not executing. However the same thing was working earlier.
I have written a shell script and when i run it from shell prompt it runs fine but in the cron it only runs partially.
That means cron is working fine.
there is a command which i am using in the script which doesn't run at all.
That comman uses different user privileges like ptadmin
i am not... (4 Replies)
Hi,
I'm new to cron and I would like to know if this cron entry looks right.
Every monday to friday, at 9:15 AM execute the script called done_att.sh
Every monday to friday, at 3:15 PM execute the script called start_att.sh
15 09 * * /u54/jobs/done_att.sh
45 15 * *... (1 Reply)
hi expert,
i had do sys-unconfig for my v890 sparc and had config for eri0 network interface and hostname but after the server bring up i got this error messages :
NIS domainname is www.USSDGmdn-4.com
starting rpc services: rpcbind keyserv done.
Setting netmask of eri0 to 255.255.255.0... (5 Replies)
i have a simple script that ftp a file out, manually running it works fine.
#!/bin/sh
ftp 152.226.69.48 << cmd
bin
get applicant_vw.txt
quit
cmd
but when I cron it,
14 9 * * * /opt/home/XXX/XXX/dailyjob.sh > /opt/home/XXX/XXX/cronlog.txt
seems that it was executed because i can... (2 Replies)
Hello All,
I have installed a few crons on a machine. But for some reason the crons just don't run. I have checked the permissions on the files and also restarted the cron daemon. But it doesn't seem ti help. Can anyone suggest any other things I can do to get it running again?
Regards,... (6 Replies)
I'm trying to run "SAR -i 60" under
#/var/spool/cron/crontabs/SYS
0,10,20,30,40,50 0-6 sh -c "/usr/lib/sa/sa1 60 10 &"
55 23 * 0-6 /usr/lib/sa/sa2 -i 900 -A
machine is not running above cron job under "sys" at all.
This suppose to run every minutes and all time in 24 hours. When day... (6 Replies)
Hi ,
I have removed a cron for particular user , but cron job seems to be running even after the cron entry is removed. The purpose of the cron was to sendmail to user ( it uses mailx utility )
I have restarted cron and sendmail service still user is getting mail alerts from the cron job. And... (4 Replies)
Hi All,
I have a script which is running fine while triggered manually, However if I placed
in crontab it throwing an error.
#!/usr/bin/ksh
set -vx
lc=1
st_date=$(`date "+%Y%m%d"`)
LOGFILE=/home/transfer.log.$st_date
file="/home/OM_WF.log.$st_date"
Manual run -
lc=1
+ lc=1... (4 Replies)
Hi All,
I wanted to run a small socket application written in C on windows.
The code was written for GNU/linux..the compiler on windows CodeBlocks complains about the sys headers.
is there an equivalent for windows ? (4 Replies)
(Apologies for any typos.)
OSX 10.12.3 AND Windows 10.
This is for the serious Python experts on at least 3.5.x and above...
In script format sys.stdout.write() AND sys.stderr.write() seems to work correctly.
Have I found a serious bug in the interactive sys.stdout.write() AND... (2 Replies)
Discussion started by: wisecracker
2 Replies
LEARN ABOUT POSIX
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)