so on day six of the week you get your job at evening at 11.
first zeros means, minute, then hour, then monthday if specified, then every month if * and then day five at the week, zero is sunday.
you can read all of this by man crontab.
Hi,
I am trying to schedule a job in linux through the crontab command.My script actually does some text processing and echoes some output.My cron scheduler is working fine,but the output messages(echoes from script) is mailed to my mail account(in unix -/var/local/mail).Is it not possible... (0 Replies)
I have created two scripts to call SQL scripts to do some work. The scripts was successfully executed many times by manual. When I scheduled two scripts in crontab, I gave all necessary parameters. It could start, but couldn't run through. The log file didn't give enough error info. Anyone can help... (10 Replies)
Hi,
we reboot our Linux server yesterday and since then (specialy last night) no job from crontab has run. Any idea ? What should I look for to investigate?
Many thanks. (5 Replies)
Hi experts,
I want to set the crontab for my script which will run every 20 seconds
I think below could be the possible one-
*/3 * * * * /export/home/username/scripts/runing.sh
As my system(SOLARIS 9) is live- i am confused to implement before make sure !!!
I need... (4 Replies)
Hello,
I have to schedule a command to run on every 3 days. Whether the below cron entry will work?
0 3 */3 * * command
Please help me out and thanks in advance! (6 Replies)
Hi,
I have a script which checks to see if an app is running and will restart it if it is not.
For some reason when I run it from the crontab it always says it is not running.
The script is as follows: -
#!/bin/sh
#
# The following script will look for the PID of SickBeard and output... (15 Replies)
Hello all,
I'm trying to write a script to gather and send data and it works just fine at the bash command line, but when executing from CRON, it does not run properly.
My scripting skills are pretty limited and there's probably a better way, but as I said it works at the command line, but... (12 Replies)
I'm trying to get a crontab to run, every Friday at 11am and the problem is that it isn't running at all.
0 11 * * 6 /Users/martinb/Documents/SYSADMIN/Regular-Scripts/Info-And-Backups.sh
Here's a link to a screenshot of my script (I've censored my email address).
Screen Shot 2017 11 03... (3 Replies)
Discussion started by: $shell_Learner
3 Replies
LEARN ABOUT REDHAT
crond
CRON(8) System Manager's Manual CRON(8)NAME
cron - daemon to execute scheduled commands (Vixie Cron)
SYNOPSIS
cron
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 '&'.
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.
SEE ALSO crontab(1), crontab(5)AUTHOR
Paul Vixie <paul@vix.com>
4th Berkeley Distribution 20 December 1993 CRON(8)