08-02-2012
We already know she has it, however.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
How to set crontab for every minute or every hour (1 Reply)
Discussion started by: kaushik02018
1 Replies
2. Shell Programming and Scripting
Hi,
I want to modifiy the hour in the crontab AIX 5.3 for this line:
Input:
00 22 * * * /outillage/script_exploit/bin/SavOffline.ksh > /dev/null 2>&1
Output:
30 20 * * * /outillage/script_exploit/bin/SavOffline.ksh > /dev/null 2>&1
With the awk or sed function through a ssh -q... (1 Reply)
Discussion started by: khalidou13
1 Replies
3. Linux
Hi,
I'm trying to save a crontab configuration using SSH, acessing a Linux machine from a Windows desktop.
So, in the prompt I type "crontab -e", to edit crontab, and a window is opened.
But after writing the changes, I press Save button but it seems not working, because when... (1 Reply)
Discussion started by: Roger75
1 Replies
4. Shell Programming and Scripting
Hi,
Can anyone help me in finding how to run a specific job every hour without using crontab.
Say for example i need to run a command ps -aux in the starting of every hour.. (3 Replies)
Discussion started by: glv
3 Replies
5. AIX
This is a new one on me. We upgraded a system from AIX 5.3 TL 7 to 6.1 TL 7 yesterday. The app people notified us that their cron jobs weren't running at the right time. So I made a test cron entry and here's what I've found:
# crontab -l
* * * * * /usr/bin/date > /tmp/test.log 2>&1
# cat... (2 Replies)
Discussion started by: homeyjoe
2 Replies
6. Solaris
SOLARIS 9 Zone :
date command in crontab shows delayed(One Hour) output
Hi folks,
the date command shows the correct date and time, How ever, if the date command executed through crontab in any form of scrip the output shows as one hour delayed, similar to date -u..
Can some one help in... (12 Replies)
Discussion started by: judi
12 Replies
7. Shell Programming and Scripting
I have a cron: 0 5,11,17,23 * * * /home/oracle/scripts/sysize.ksh
This cron will trigger
cat dbsz.txt | mail -s "$TODAY: PROD DB Size" $RECIPIENTS
I don't want to get the e-mail notice 4 times a day. Can I have just one e-mail triggered at 11 AM?
Please advise.
Thank you (3 Replies)
Discussion started by: Daniel Gate
3 Replies
8. Shell Programming and Scripting
Hi All,
While setting the crontab i am getting the below error,
"/tmp/crontab.XXXXwKymEc" 156L, 15621C written
crontab: installing new crontab
"/tmp/crontab.XXXXwKymEc":74: bad hour
Please help.
Thanks (2 Replies)
Discussion started by: nag_sathi
2 Replies
9. UNIX for Dummies Questions & Answers
Hello,
I wish to modify the day of launch of a "batch" in the crontab on several servers with awk or sed.
Can you help me ?
Beforehand thank you
00 18 * * 1 /box/Pra/bin/systeme_reverse.ksh -s >/dev/null 2>&1 (7 Replies)
Discussion started by: khalidou13
7 Replies
10. UNIX and Linux Applications
First configure the directory as so--
mkdir -p ~/.mutt/cache/headers
mkdir ~/.mutt/cache/bodies
touch ~/.mutt/certificates
Then create the config file --
touch ~/.mutt/muttrc
Now, edit the file
sudo nano ~/.mutt/muttrc
Thanks to iandexter/github for the script:-
# Gmail... (1 Reply)
Discussion started by: puneet_bapna
1 Replies
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)