10 More Discussions You Might Find Interesting
1. Fedora
Hi All,
Please tell me which daemon is responsible for start and stop the crontab.
Please tell me the location where it resides in Linux platform.
Sindu. (2 Replies)
Discussion started by: indira_s
2 Replies
2. UNIX for Dummies Questions & Answers
I am not system admin on Unix or Linux server. I am Oracle DBA to work on these operating systems. On our Oracle Linux 5.8 box, it always pump up the alert message like this:
Cron Daemon
/bin/sh: /opt/oracle/product/middleware/agent11g/ccr/bin/emCCR: No such file or directory
Please help... (2 Replies)
Discussion started by: duke0001
2 Replies
3. IP Networking
I'm looking for a couple high level pointers to writing a UDP server that will be acknowledging data at a rate of approximately twelve packets every second and will be running on and older but more or less dedicated Solaris 9 box.
Acknowledging the data packets is relatively simple, after... (2 Replies)
Discussion started by: allbread
2 Replies
4. Solaris
Hello All,
In SunOS 10, I have some cron jobs and it is running fine but the cron job outputs are not mailing to any acount of the system.
In other OS, we have option like MAILTO variable or /dev/null to disable but in Sun I have no idea how it is disabled by default and how do I... (13 Replies)
Discussion started by: Tlogine
13 Replies
5. UNIX for Dummies Questions & Answers
hi,
i need to execute/visit a site to check if the site is up or not i have a server that have cron shedule that can execute a php file now how can i execute/visite a site using the same way as i execute a file?
thanks a lot for your help :) (1 Reply)
Discussion started by: jasonx22
1 Replies
6. Shell Programming and Scripting
Hello,
I need to run a command on remote Linux using the ssh command from my local machine. I am able to execute the command on remote machine using ssh but it's behaving strangely.
The command is supposed to start a daemon process on remote linux box and the control should return back to me... (5 Replies)
Discussion started by: nitinshukla
5 Replies
7. SCO
Hi
We are running SCO ver 5. Recently the cron daemon stopped running on its own. How do I find out why? How do I restart/stop it?
I typed cron but it didn't work. Will rebooting it do the trick or can I manually start and stop the cron daemon?
Please help.
Thanks & Regards. (9 Replies)
Discussion started by: othman
9 Replies
8. UNIX for Dummies Questions & Answers
I'm running a FreedBSD server with mysql 4.1. When I start mysqld via the command:
# /usr/local/bin/safe_mysqld --user=mysql
it starts the mysql db (I know because the websites are running off of it) but does not return to a prompt, it will let me type but will not respond unless I restart... (15 Replies)
Discussion started by: unispace
15 Replies
9. UNIX for Dummies Questions & Answers
I ve a problem with the cron daemon.
i ve a process that sends many mail, and full my /var FS
i don t want to write a script that would clean its mails
i want to know if it would be possible to stop the cron daemon sending mails only for that specific process.
Thanks !:D (3 Replies)
Discussion started by: karine
3 Replies
10. UNIX for Dummies Questions & Answers
Hey all,
I'm running Mandrake 7.2 with several of the development/server tools loaded and operating. One problem I'm having is that I keep getting emails from the "Cron Daemon". They all say:
touch: /var/log/news/nntpsend.log: Permission denied
chmod: same as above
/usr/bin/nntpsend: ... (2 Replies)
Discussion started by: ober5861
2 Replies
cron(8) System Manager's Manual cron(8)
NAME
cron - The system clock daemon
SYNOPSIS
/usr/sbin/cron
DESCRIPTION
The cron daemon runs shell commands at specified dates and times. Commands that are to run according to a regular or periodic schedule are
found within the crontab files. Commands that are to run once only are found within the at files. You submit crontab and at file entries
by using the crontab and at commands. Because the cron process exits only when killed or when the system stops, only one cron daemon
should exist on the system at any given time. Normally, you start the cron daemon from within a run command file.
During process initialization and when cron detects a change, it examines the crontab and at files. This strategy reduces the overhead of
checking for new or changed files at regularly scheduled intervals. The cron command creates a log of its activities. The cron daemon
must be started from the system startup scripts because it must begin execution without a login user ID set. The cron daemon starts each
job with the following process attributes stored with the job by the invoking process: Login user ID Effective and real user IDs Effective
and real group IDs Supplementary groups
It also establishes the following attributes from the authentication profile of the account associated with the login user ID of the invok-
ing process: Audit control and disposition masks Kernel authorizations
DIAGNOSTICS
The at and batch programs will refuse to accept jobs submitted from processes whose login user ID is different from the real user ID.
FILES
Specifies the command path. Main cron directory Directory containing the crontab files. List of allowed users. List of denied users His-
tory information for cron Queue description file for at, batch, and cron
RELATED INFORMATION
Commands: at(1), crontab(1), rc0(8), rc2(8), rc3(8)
Files: queuedefs(4) delim off
cron(8)