I have the below crontab job that it will run at every 7:00am - 10:00am , it work fine , now if I want to skip to run the crontab job at a specific time , eg. I want the script not to run at next Monday 8:00am ( only skip this time , other time is normal ) , how can I make it ? is it possible ?... (3 Replies)
Hi,
I have a crontab that runs some shell scripts at fixed intervals. Although, one condition for a script to continue is that a previous instance of the same script should have terminated. But, inspite of the fact that the old instance has finished execution, the new instance still terminates.
... (3 Replies)
I am trying to setup cronjob and once I start to save it is not working. This is what I am getting after I executed crontab -e, I am not even getting the privious entry and I am running from root.
crontab -e
421
10 3 * * * /usr/sbin/logadm
?
:wq
?
Why is it not saving? Any input is... (4 Replies)
new to unix here, im learning how to schedule jobs with crontab. The following cron job runs under root but not under a test account i created.
50 11 * * 0 /usr/bin/banner "HELLO" > /dev/console
i have no idea with it isn't running under the test account but runs right on time when i create... (7 Replies)
Hello All,
I want to run a script for every 5 minutes interval.So i developed a script which has to be scheduled to run for every 5 minutes. That script internally runs another script. But the problem is it is not executing properly. Can anybody throw some light on this.
Below are the code... (4 Replies)
Hi ,
I have a TCL script which i am supposed to run as a cron job..
The script works fine from command line , but when run as a cron job , its unable to find a package,,
my crontab is as follows.
---------------------------
#!/usr/bin/ksh
* * * * * PATH=/cm8/auto/Automation/Library/TclLib
... (7 Replies)
I have a perl script which Im planning to run every minute.
I have set the cron job as
* * * * * PATH= /usr/local/bin:/usr/bin:/usr/sbin:/usr/lib; perl /dm2/www/html/isos/pre5.3/autoDownload.pl
I assume the script is executing every minute only because I see a entry like below when I do... (2 Replies)
When i am trying to open crontab throught command crontab -e. It is not opening?
OUTPUT:
# crontab -e
sh: vim: not found
The crontab file was not changed.
Please let me know how to open and edit it??? (10 Replies)
Since cPanel does not support deleting emails older then X amount of days I am using the following on a Cron Job.
find -P /home/user/mail/domain/ -mindepth 2 -mtime '+366' -type f -printf '"%p"\n' | grep -v '/Important' | grep -v '/.Important' | xargs -I {} rm -r "{}"
Executing it via SSH... (4 Replies)
HI,
I have written an executable file in unix and I was able to execute it successfully but when I called this file with cron job it was giving error like "permission denied" and "No such file or directory".
Please help in how cron calls the file and what permission is required on the file... (2 Replies)
Discussion started by: vipin kumar rai
2 Replies
LEARN ABOUT PLAN9
cron
CRON(8) System Manager's Manual CRON(8)NAME
cron - clock daemon
SYNOPSIS
auth/cron [-c]
DESCRIPTION
Cron executes commands at specified dates and times according to instructions in the files /cron/user/cron. It runs only on an authentica-
tion server. Option -c causes cron to create /cron/user and /cron/user/cron for the current user; it can be run from any Plan 9 machine.
Blank lines and lines beginning with # in these files are ignored. Entries are lines with fields
minute hour day month weekday host command
Command is a string, which may contain spaces, that is passed to an rc(1) running on host for execution. The first five fields are integer
patterns for
minute 0-59
hour 0-23
day of month 1-31
month of year 1-12
day of week 0-6; 0=Sunday
The syntax for these patterns is
time : '*'
| range
range : number
| number '-' number
| range ',' range
Each number must be in the appropriate range. Hyphens specify inclusive ranges of valid times; commas specify lists of valid time ranges.
To run the job, cron calls host and authenticates remote execution, equivalent to running rx host command (see con(1)). The user's profile
is run with $service set to rx.
Cron is not a reliable service. It skips commands if it cannot reach host within two minutes, or if the cron daemon is not running at the
appropriate time.
EXAMPLES
Here is the job that mails system news.
% cat /cron/upas/cron
# send system news
15 8-17, 21 *** helix /mail/lib/mailnews
%
SOURCE
/sys/src/cmd/auth/cron.c
SEE ALSO con(1), rc(1)CRON(8)