Login or Register to Ask a Question and Join Our Community


Weird crontab problem


 
Thread Tools Search this Thread
Operating Systems Solaris Weird crontab problem
# 1  
Old 10-03-2007
Weird crontab problem

Greetings To All!

I am running Solaris 10 in a sparc environment.

Here is the deal:

In /var/spool/cron/crontabs, there is a cron user named "sys". If I do a
crontab -l sys, it returns:

# 0 * * * 0-6 /usr/lib/sa/sa1
# 20,40 8-17 * * 1-5 /usr/lib/sa/sa1
# 5 18 * * 1-5 /usr/lib/sa/sa2 -s 8:00 -e 18:01 -i 1200 -A

I have tried to modify the above job by changing the first line...and uncommenting all 3 lines, so that it will read the following at run time:

0,5,10,15,20,25,30,35,40,45,50,55 * * * 0-6 /usr/lib/sa/sa1
20,40 8-17 * * 1-5 /usr/lib/sa/sa1
5 18 * * 1-5 /usr/lib/sa/sa2 -s 8:00 -e 18:01 -i 1200 -A

I am making the above mentioned modification as user "sys", who owns this particular cron job.

The problem is this:

For some weird, unexplainable reason, the modified cron job:

0,5,10,15,20,25,30,35,40,45,50,55 * * * 0-6 /usr/lib/sa/sa1
20,40 8-17 * * 1-5 /usr/lib/sa/sa1
5 18 * * 1-5 /usr/lib/sa/sa2 -s 8:00 -e 18:01 -i 1200 -A

will always revert back to its original default to read:

# 0 * * * 0-6 /usr/lib/sa/sa1
# 20,40 8-17 * * 1-5 /usr/lib/sa/sa1
# 5 18 * * 1-5 /usr/lib/sa/sa2 -s 8:00 -e 18:01 -i 1200 -A

Anyone have any ideas what could be causing this? This one has me scratching my head...

Your replies are greatly appreciated!

Sincerely

RobSand
# 2  
Old 10-03-2007
How are you changing it?

Are you using the "crontab" tool to update the table?
# 3  
Old 10-03-2007
When does it revert? Looking at the Solaris 10 source code, I notice this: Cross Reference: /onnv/onnv-gate/usr/src/cmd/sa/svc-sar
# 4  
Old 10-03-2007
Quote:
Originally Posted by porter
How are you changing it?

Are you using the "crontab" tool to update the table?
I am using: crontab -e sys
# 5  
Old 10-03-2007
Quote:
Originally Posted by Perderabo
When does it revert? Looking at the Solaris 10 source code, I notice this: Cross Reference: /onnv/onnv-gate/usr/src/cmd/sa/svc-sar
I do not know what time it reverted; I looked in the cron log and could not find anything in there.

Rob
# 6  
Old 10-03-2007
If the file was changed, so was the timestamp on the file. But I wasn't looking for simply a timestamp. I mean, for example, does it change on reboot? Does it change once a day? Are you stopping and restarting the service, and if so does that change it? Etc.
# 7  
Old 10-08-2007
Have you tried su'ing to the sys user and doing a bit of crontab -e as that user directly?
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Weird awk problem

Hi, I have a simple awk script: BEGIN{} { $a=$2-$1; print $a } END{if(NR==0){ print "0" } } to which I provide the following input 2.9 14 22.2 27 (4 Replies)
Discussion started by: jamie_123
4 Replies

2. Shell Programming and Scripting

Control characters -weird problem

I am using Korn shell on Linux 2.6x platform , and I am suing the following code to capture the lines which contain CONTROL CHARACTERS in my file : awk '/]/ {print NR}' EROLLMENT_INPUT.txt The problem is that this code shows the file has control characters when the file is in folder A ,... (2 Replies)
Discussion started by: kumarjt
2 Replies

3. Shell Programming and Scripting

awk weird problem.

awk 'BEGIN{print 1.2.3.4}' 1.20.30.4 Can anyone explain why has extra "0" in the IP address? (3 Replies)
Discussion started by: newoz
3 Replies

4. Infrastructure Monitoring

Weird dependency problem!

Hi, I want to install net-snmp-devel package but i have following dependecy problem. It's very odd, i don't get it. One of packages is depended on the other one, the other one is depended on the previous one as well. :S :S Could you help me please? Here are the steps: # ls -l total... (4 Replies)
Discussion started by: oduth
4 Replies

5. UNIX for Advanced & Expert Users

Really weird delete problem

Hi, I've Ubuntu 8.04, and it has some files that I just cannot delete. I've tried everything, inode, fsck etc. Here is what the ls -li outputs root@ubuntu:/home/luser/.local/share/Trash/files/junk# ls -l ls: cannot access TRUNK_: No such file or directory ls: cannot access 2006_output.mv:... (11 Replies)
Discussion started by: nitin
11 Replies

6. Shell Programming and Scripting

weird script in crontab

Hello here's the first line's of the code that works perfect on command line but not as a crontab job ??? crontab: 15 * * * * /root/scripts/checkclamd_mem.shscript: #!/bin/bash # Checks Memory of the Clamav-daemon and it's .pid file # restarts if over the LIMIT. Starts if pid file not... (3 Replies)
Discussion started by: nls mchn
3 Replies

7. HP-UX

Weird Issue with crontab.

Hello all, Normally I'm pretty comfortable with crontab, changing and updating (done it many-a-time). But in the last two days I've been pulling my hair out over the following... Details of OS: HP-UX mdirect B.11.23 U ia64 2587410573 unlimited-user license Issue: Execute a script (very... (3 Replies)
Discussion started by: Cameron
3 Replies

8. Shell Programming and Scripting

Weird date difference problem

I am trying to find the difference in days between 2 dates. I have to extract the 1st date from a filename, which i did using the awk command. I have to compare this date to today's date and if the difference is greater than 30 days, do something, else do something else. This is what i wrote... (22 Replies)
Discussion started by: meeraKh
22 Replies

9. UNIX for Advanced & Expert Users

weird problem with removing files

I have a few files on my system named: -rw------- -rw-r----- -rw-rw--w- -rwxrw-r-x (Yes, it's really the name of the file, not the access permissions, they're 0 bytes large and all created at the same date/time). I've no idea how they got there but I don't seem to be able to delete them... (2 Replies)
Discussion started by: rein
2 Replies

10. UNIX for Dummies Questions & Answers

Weird Problem???

I have a problem I don't understand... I am trying to declare a variable, and then output the results of that variable, couldn't be simpler #!/bin/ksh VAR='Oranges' if then echo "Found Lemons" elif then echo "Found Oranges" fi The output shouold clearly be "Found Oranges", but... (2 Replies)
Discussion started by: danhodges99
2 Replies
Login or Register to Ask a Question

Featured Tech Videos