I tend to use mailx rather than sendmail directly when scripting, e.g. to send a mail message:
What are you trying to achieve with sendmail, and what Unix are you using, I do not see a -i option for sendmail on the manpage I am looking at?
I am trying to get the number of cpus on a farm of linux boxes (about 100 of them) by 'sshing' to each of them and checking their /proc/cpuinfo file.
So I have a local script localscript.sh on each of those 100 machines which retrieves the number of cpus in it by using its /proc/cpuinfo file.... (1 Reply)
Does anyone know if this is possible?
I want to give some users access to root's crontab but only with a read privilege.
Is this possible to do or can only root or people with full root sudo view root's cron? (4 Replies)
Good morning everybody. I have just receiedv a complaint from our DBA saying that if he create a scripts to run some Oracle performance scripts using crontab and the scheduling part is ok but the job is failed when I checked on /var/adm/cron/log.
I have tried his scripts using Oracle id directly... (4 Replies)
I am getting the following error in the cron log:
! bad user (root) Wed Sep 22 14:30:00 2010
< root 8989 c Wed Sep 22 14:30:00 2010 rc=1
What does this mean? (5 Replies)
I've been bashing my head on the desk for 2 days trying to get this to work, but I've had no luck. I'll try to be as clear as possible in my explanation without dragging out the details. I'm trying to set up a cron job for user "john" which runs a script. This script initiates an ssh connection to... (5 Replies)
Hi All,
Ref: "build crontab from a text file" in same forum. (I am not allowed to post URL's in the first post)
We are reorganizing our UNIX Crontab file by first making changes in a word pad text file. The intent is to then copy it back to Crontab. Will this work? Copy and Paste does not... (6 Replies)
I've been through many threads before i decide to create a separate thread.
I can't really find the solution to my (simple) problem.
Here's what I'm trying to achieve:
As "canar" user I want to run a command, let's say "/opt/ocaml/bin/ocaml" as "duck" user.
The only to achieve this is to... (1 Reply)
Hi everyone,
I got error which is "!bad user (root)" in crontab...
I tried changing password,
I checked etc/cron/cron.allow and cron.deny,
And also I checked the permissions of my files,
its(my crontab script) still not working....
Please help... (12 Replies)
I am trying a cron on root user to backup to tape using TAR command
here is the cron entry
11 08 * * 6 /erdhot1cron 2>&1 >> /test3/scripts/dba/erdhot1cron.log
here is script inside - edhot1cron
#!/bin/bash
vsysdt=`date +%d%m%y`
date
tar -cvf /dev/st0... (4 Replies)
Hi,
i have question about cron. can we have user based cron file under /var/spool/cron or we should have only root file which can only be accessed by root user or admin and he should only be doing the task of scheduling.
PKS (8 Replies)
Discussion started by: praveenkumar198
8 Replies
LEARN ABOUT REDHAT
cron
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)