Here is a sample job that will run at 6AM every Sunday morning.
Having the redirect at the end will prevent you from getting emails
if the script produces output.
This User Gave Thanks to gandolf989 For This Post:
I want to create an automated script which is called by another maually executed script.
The condition is that the no one should be able to manually execute the automated script.
The automated script can be on the same machine or it can be on a remote machine.
Can any one suggest a check in the... (1 Reply)
Hi ,
I have a date parameter passed in YYYYMMDD format , how can I check whether it is Sat or Sun on Solaris box , as we can do the same easily on linux box by using date -d YYYYMMDD '+a' .
Any pointres will be really helpful . (5 Replies)
Hi,
i have a script 'a.sh' that should be called only by certain scripts like b.sh, c.sh
Inside a.sh, how can i determine
1) if this script was run directly from command prompt (or scheduler)
2) if called via other scripts?
Is there an easy way to get parent process name (not just pid),... (2 Replies)
Hello,
I wanted to run one of my shell script for every sunday at 5PM.
Here is the crontab entry i am using..
00 17 * * 0 /inventory/update.sh > /inventory/update.log 2>&1
The job is not kicking on sunday at the specified time.. Am i missing anthing?
Any help is appreciated... (2 Replies)
I have a local linux machine in which the files are dumped by a remote ubuntu server. If the process in remote server has any problem then empty files are created in local machine. Is there any way using perl script to check if the empty files are being created and delete them and then run a shell... (2 Replies)
I was to schedule a script in a crontab after every 15 days specically on every 2nd Sunday.
I know that i can schedule on basis of weekdays, but can it be done by skipping in between???:wall: (5 Replies)
Hi,
I need to create a autosys job which will run on every sunday at 7:30 AM NY time for each 10 min interval of time.
days_of_week: su
start_mins: 0,10,20,30,40,50
run_window:"07:30"
Is it fine? Please help
Thanks,
Anup (2 Replies)
Hello,
I'm looking for a bash script, that I will run from cron, that executes a php script. After 5 minutes that the php script is executed, the bash script, must check a value in a text file /public_html/check.txt
if check.txt = 0 the script will stop, if check.txt is not = 0 it must... (0 Replies)
Hi all,
I have a script that can be run via cron or via the command line.
Is there any way that I can place something on the script to be able to distinguish/differentiate whether the script was run via a user in the command line or whether it was run from the cron? (3 Replies)
Hi ALL,
I have been testing this script to run for every last Sunday of the month,looks like month which have 5 sunday (july 2016 )is not passing this and failing every time.
Here is what I am using,
current_date=31
echo " CURRENT DAY -> $current_date"
if
... (2 Replies)
Discussion started by: netdbaind
2 Replies
LEARN ABOUT SUSE
cron
CRON(8) System Manager's Manual CRON(8)NAME
cron - daemon to execute scheduled commands (ISC Cron V4.1)
SYNOPSIS
cron [-l load_avg] [-n]
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 '&'. The -n option
changes this default behavior causing it to run in the foreground. This can be useful when starting it out of init.
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.
Daylight Saving Time and other time changes
Local time changes of less than three hours, such as those caused by the start or end of Daylight Saving Time, are handled specially. This
only applies to jobs that run at a specific time and jobs that are run with a granularity greater than one hour. Jobs that run more fre-
quently are scheduled normally.
If time has moved forward, those jobs that would have run in the interval that has been skipped will be run immediately. Conversely, if
time has moved backward, care is taken to avoid running jobs twice.
Time changes of more than 3 hours are considered to be corrections to the clock or timezone, and the new time is used immediately.
PAM Access Control
On SUSE LINUX systems, crond now supports access control with PAM - see pam(8). A PAM configuration file for crond is installed in
/etc/pam.d/crond . crond loads the PAM environment from the pam_env module, but these can be overriden by settings in the crontab file.
SIGNALS
On receipt of a SIGHUP, the cron daemon will close and reopen its log file. This is useful in scripts which rotate and age log files.
Naturally this is not relevant if cron was built to use syslog(3).
CAVEATS
In this version of cron, /etc/crontab must not be writable by any user other than root. No crontab files may be links, or linked to by any
other file. No crontab files may be executable, or be writable by any user other than their owner.
SEE ALSO crontab(1), crontab(5), pam(8)AUTHOR
Paul Vixie <vixie@isc.org>
4th Berkeley Distribution 10 January 1996" CRON(8)