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Solved
script won't run in cron but runs on the command line
Posted on 2014-12-09
This script runs just fine when I run it from the command line, but it bombs on the mailx piece when I try to run it from a cron job. Any ideas?
Thanks in advance,
David
Thanks in advance,
David
#!/bin/ksh
now=current
set -x
LOGDIR=/opt/VRTSsfmcs/Backup
THIS_SCRIPT=`basename $0`
LOGFILE=$THIS_SCRIPT_$now.log
MAILLIST="david@itmemphis.com"
MAILSTRING="lnxutil VOM Backup Result $now"
function logger {
mkdir /opt/VRTSsfmcs/Backup/VOM_Backup_$now
echo "Creating Logs"
echo "Creating Logfile"
mkdir -p $LOGDIR
exec 1> $LOGDIR/$LOGFILE 2>&1
mv $LOGDIR/$LOGFILE /opt/VRTSsfmcs/Backup/VOM_Backup_$now
}
function clean {
echo "Removing old file"
rm -r /opt/VRTSsfmcs/Backup/VOM_Backup_last
echo "Changing file name"
mv /opt/VRTSsfmcs/Backup/VOM_Backup_$now /opt/VRTSsfmcs/Backup/VOM_Backup_last
echo "Clean Complete"
}
function Do_Backup {
echo "Running the backup process...."
/opt/VRTSsfmcs/config/adm/vom_bkup.pl --backup /opt/VRTSsfmcs/Backup/VOM_Backup_$now
echo "Backup Complete"
}
function mailer {
echo "Sending Email to david@itmemphis.com"
cat /opt/VRTSsfmcs/Backup/VOM_Backup_$now/$now.log | mailx -s "$MAILSTRING" $MAILLIST
}
clean
logger
Do_Backup
mailer
[X]
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34 Comments
What user is the cronjob running as?
What user are you running it from the command line as?
What specific error are you getting?
Remember that cronjobs run in a limited environment (eg: PATH and other environment variables), although I can't see anything specifically that should affect it running as a cronjob.
What user are you running it from the command line as?
What specific error are you getting?
Remember that cronjobs run in a limited environment (eg: PATH and other environment variables), although I can't see anything specifically that should affect it running as a cronjob.
Active 2 days ago
Add full path to the mailx command.
Find where your mailx is like this: which mailx
So if your mailx path is /usr/bin/mailx then change the mailer line accordingly:
cat /opt/VRTSsfmcs/Backup/VOM_
Find where your mailx is like this: which mailx
So if your mailx path is /usr/bin/mailx then change the mailer line accordingly:
cat /opt/VRTSsfmcs/Backup/VOM_
It runs as root. I'm not getting an error message, it just doesn't send the email. It runs without a hitch from the command line though. I'll give the idea of calling the full path to mailx a try.
Try adding the -v flag on mailx to get verbose output, ie:
cat /opt/VRTSsfmcs/Backup/VOM_
cat /opt/VRTSsfmcs/Backup/VOM_
How the crontab job is run? You may redirect the script std out & err to log file and see errors in the log file.
Also, check your email on the server or crontab error logs for errors
Also, check your email on the server or crontab error logs for errors
16 17 * * * /opt/VRTSsfmcs/Backup/VOM_
Of course I move the time to when I want it to run to test it.
Of course I move the time to when I want it to run to test it.
Can you redirect to log file:
16 17 * * * /opt/VRTSsfmcs/Backup/VOM_
and check the log file?
Also, what are the perms of /opt/VRTSsfmcs/Backup/VOM_
chmod +r /opt/VRTSsfmcs/Backup/VOM_
to make it executable.
Also, make sure that:
- use full path names in your script for files and folders
- redirect stdout & stderr to files
- When using commands, either have PATH set or use full path names
- If some commands require input from stdin then redirect input as well
- script files you are calling have the execute perm
16 17 * * * /opt/VRTSsfmcs/Backup/VOM_
and check the log file?
Also, what are the perms of /opt/VRTSsfmcs/Backup/VOM_
chmod +r /opt/VRTSsfmcs/Backup/VOM_
to make it executable.
Also, make sure that:
- use full path names in your script for files and folders
- redirect stdout & stderr to files
- When using commands, either have PATH set or use full path names
- If some commands require input from stdin then redirect input as well
- script files you are calling have the execute perm
Active 2 days ago
Append to the logfile instead of overwriting it every time (>> iso >) and put the logfile where the script itself is (best practice):
16 17 * * * /opt/VRTSsfmcs/Backup/VOM_
16 17 * * * /opt/VRTSsfmcs/Backup/VOM_
The aim is to get the errors if there is any error and for that it is temporary redirect to know the cause.
Ok, changed it to this and it didn't even create mylog.
4 6 * * * /opt/VRTSsfmcs/Backup/VOM_
4 6 * * * /opt/VRTSsfmcs/Backup/VOM_
ok, change your crontab to:
4 6 * * * /bin/ksh -v /opt/VRTSsfmcs/Backup/VOM_
The above will force creating log while executing the script
4 6 * * * /bin/ksh -v /opt/VRTSsfmcs/Backup/VOM_
The above will force creating log while executing the script
Active 2 days ago
>> It runs as root
Look in logging to see what is happening:
tail -100 /var/log/syslog | grep CRON
or
tail -100 /var/log/cron.log
You can post any errors you get.
Look in logging to see what is happening:
tail -100 /var/log/syslog | grep CRON
or
tail -100 /var/log/cron.log
You can post any errors you get.
No errors..
lnxutil:/var/log# tail -100 cron|grep VOM
Dec 10 06:04:01 lnxutil CROND[1880]: (root) CMD (/opt/VRTSsfmcs/Backup/VOM
Dec 10 06:54:01 lnxutil CROND[17529]: (root) CMD (/opt/VRTSsfmcs/Backup/VOM
lnxutil:/var/log# tail -100 cron|grep VOM
Dec 10 06:04:01 lnxutil CROND[1880]: (root) CMD (/opt/VRTSsfmcs/Backup/VOM
Dec 10 06:54:01 lnxutil CROND[17529]: (root) CMD (/opt/VRTSsfmcs/Backup/VOM
I'm going to rewrite this script. I don't like the variables and functions that aren't needed and see what happens. I'll post the new code and results here. No matter what, I'll reward you guys. I appreciate the help.
David
David
The logs you posted show that the job runs, but did you try to call the script as I suggested with /bin/ksh -v
This will show the step by step execution of the script and you may catch the problem.
This will show the step by step execution of the script and you may catch the problem.
Ok, I rewrote this as easily as I could... here's what it looks like now. It still does the same thing. It works perfectly from the command line, but won't mail the results when it runs from cron.
Here's the crontab entry:
9 9 * * * /opt/VRTSsfmcs/Backup/VOM_
Here's the contents of mylog:
lnxutil:/tmp# cat mylog
#!/bin/ksh -v
set -x
MAILTO="david@itmemphis.co
+ MAILTO=david@itmemphis.com
MAILSTRING="lnxutil VOM Backup Result current"
+ MAILSTRING='lnxutil VOM Backup Result current'
# Clean up
rm -r /opt/VRTSsfmcs/Backup/VOM_
+ rm -r /opt/VRTSsfmcs/Backup/VOM_
mv /opt/VRTSsfmcs/Backup/VOM_
+ mv /opt/VRTSsfmcs/Backup/VOM_
#Logger
mv /opt/VRTSsmfcs/Backup/VOM_
+ mv /opt/VRTSsmfcs/Backup/VOM_
mkdir -p /opt/VRTSsmfcs/Backup/VOM_
+ mkdir -p /opt/VRTSsmfcs/Backup/VOM_
exec 1> /opt/VRTSsmfcs/Backup/VOM_
+ exec
+ 1> /opt/VRTSsmfcs/Backup/VOM_
#Backup
/opt/VRTSsfmcs/config/adm/
+ /opt/VRTSsfmcs/config/adm/
#!/bin/ksh -v
set -x
MAILTO="david@itmemphis.com"
MAILSTRING="lnxutil VOM Backup Result current"
# Clean up
rm -r /opt/VRTSsfmcs/Backup/VOM_Backup_last
mv /opt/VRTSsfmcs/Backup/VOM_Backup_current /opt/VRTSsfmcs/Backup/VOM_Backup_last
#Logger
mv /opt/VRTSsmfcs/Backup/VOM_Backup_current.log /opt/VRTSsfmcs/Backup/VOM_Backup_last.log
mkdir -p /opt/VRTSsmfcs/Backup/VOM_Backup_current
exec 1> /opt/VRTSsmfcs/Backup/VOM_Backup_current.log
#Backup
/opt/VRTSsfmcs/config/adm/vom_bkup.pl --backup /opt/VRTSsfmcs/Backup/VOM_Backup_current
#Mail
echo "VOM Results"|/bin/mailx -v -s "$MAILSTRING" $MAILTO < /opt/VRTSsmfcs/Backup/VOM_Backup_current.log
Here's the crontab entry:
9 9 * * * /opt/VRTSsfmcs/Backup/VOM_
Here's the contents of mylog:
lnxutil:/tmp# cat mylog
#!/bin/ksh -v
set -x
MAILTO="david@itmemphis.co
+ MAILTO=david@itmemphis.com
MAILSTRING="lnxutil VOM Backup Result current"
+ MAILSTRING='lnxutil VOM Backup Result current'
# Clean up
rm -r /opt/VRTSsfmcs/Backup/VOM_
+ rm -r /opt/VRTSsfmcs/Backup/VOM_
mv /opt/VRTSsfmcs/Backup/VOM_
+ mv /opt/VRTSsfmcs/Backup/VOM_
#Logger
mv /opt/VRTSsmfcs/Backup/VOM_
+ mv /opt/VRTSsmfcs/Backup/VOM_
mkdir -p /opt/VRTSsmfcs/Backup/VOM_
+ mkdir -p /opt/VRTSsmfcs/Backup/VOM_
exec 1> /opt/VRTSsmfcs/Backup/VOM_
+ exec
+ 1> /opt/VRTSsmfcs/Backup/VOM_
#Backup
/opt/VRTSsfmcs/config/adm/
+ /opt/VRTSsfmcs/config/adm/
Hrmm.. looking at the perl script, it ends with either exit 0 or exit 1. I changed it to return 0 or return 1 and we'll see what that does.
Nope, that didn't work.
[Thu Dec 11 09:33:17 2014] vom_bkup.pl: Can't return outside a subroutine at /opt/VRTSsfmcs/config/adm/
[Thu Dec 11 09:33:17 2014] vom_bkup.pl: Can't return outside a subroutine at /opt/VRTSsfmcs/config/adm/
I put the full path to all execuatables, set the path variable, AND sourced . /root/.profile. Still doesn't work.
If you aren't seeing the mailx line in the log, that would indicate that the Perl script is either taking a very long time to finish, or never finishing.
It's finishing. All the backups are done. The logs are there, and it runs just fine from the command line.
Here's the contents of the log it's trying to email:
lnxutil:/opt/VRTSsfmcs/Bac
Stop SNMP Trap Service.
Stop xprtld Service.
Stop Web Service.
Stop AT Service.
Stop DB Service.
Backup files to /opt/VRTSsfmcs/Backup/VOM_
Backup files completed.
Start DB Service.
Start AT Service.
Start Web Service.
Start xprtld Service.
Start SNMP Trap Service.
Veritas Operations Manager backups files successfully.
For detail information, please see vom_bkup.backup_log located in /opt/VRTSsfmcs/Backup/VOM_
lnxutil:/opt/VRTSsfmcs/Bac
Stop SNMP Trap Service.
Stop xprtld Service.
Stop Web Service.
Stop AT Service.
Stop DB Service.
Backup files to /opt/VRTSsfmcs/Backup/VOM_
Backup files completed.
Start DB Service.
Start AT Service.
Start Web Service.
Start xprtld Service.
Start SNMP Trap Service.
Veritas Operations Manager backups files successfully.
For detail information, please see vom_bkup.backup_log located in /opt/VRTSsfmcs/Backup/VOM_
Just to verify, the very last line in mylog is:
#Backup
/opt/VRTSsfmcs/config/adm/
+ /opt/VRTSsfmcs/config/adm/
You confirmed that the cronjob completed when you looked at the log?
Perhaps you could add a:
echo "Backup complete"
after where it calls the Perl script and see if you get that output in mylog.
If not, it indicates the script isn't completing.
#Backup
/opt/VRTSsfmcs/config/adm/
+ /opt/VRTSsfmcs/config/adm/
You confirmed that the cronjob completed when you looked at the log?
Perhaps you could add a:
echo "Backup complete"
after where it calls the Perl script and see if you get that output in mylog.
If not, it indicates the script isn't completing.
Ok, Tintin, we're making some progress. The perl script calls it's own version of perl which is 5.8.8. When I use the version of perl that's on this version of Linux, 5.10, the script bombs because it's still trying to use the 5.8.8 libs. How can I make it use the libs for 5.10? Here's the error:
#Backup
/usr/bin/perl /opt/VRTSsfmcs/config/adm/
+ /usr/bin/perl /opt/VRTSsfmcs/config/adm/
Perl lib version (v5.8.8) doesn't match executable version (v5.10.1) at /opt/VRTSsfmh/lib/modules/
Compilation failed in require at /opt/VRTSsfmh/lib/modules/
BEGIN failed--compilation aborted at /opt/VRTSsfmh/lib/modules/
Compilation failed in require at /opt/VRTSsfmcs/config/adm/
BEGIN failed--compilation aborted at /opt/VRTSsfmcs/config/adm/
print "Backup complete" >> /tmp/mylog
#Backup
/usr/bin/perl /opt/VRTSsfmcs/config/adm/
+ /usr/bin/perl /opt/VRTSsfmcs/config/adm/
Perl lib version (v5.8.8) doesn't match executable version (v5.10.1) at /opt/VRTSsfmh/lib/modules/
Compilation failed in require at /opt/VRTSsfmh/lib/modules/
BEGIN failed--compilation aborted at /opt/VRTSsfmh/lib/modules/
Compilation failed in require at /opt/VRTSsfmcs/config/adm/
BEGIN failed--compilation aborted at /opt/VRTSsfmcs/config/adm/
print "Backup complete" >> /tmp/mylog
Ok, tried this and didn't get an error, but the backup didn't run so I got a blank email.
#Backup
/usr/bin/perl -l /usr/share/perl5 /opt/VRTSsfmcs/config/adm/
+ /usr/bin/perl -l /usr/share/perl5 /opt/VRTSsfmcs/config/adm/
print "Backup complete" >> /tmp/mylog
#Backup
/usr/bin/perl -l /usr/share/perl5 /opt/VRTSsfmcs/config/adm/
+ /usr/bin/perl -l /usr/share/perl5 /opt/VRTSsfmcs/config/adm/
print "Backup complete" >> /tmp/mylog
Looking at the perl script, I'm going to have to use their version because they have a lot of their own modules they are calling. I just have to figure out why it won't run in cron now. :-/
Ok, so I found a way to make it work, although I STILL don't know why it won't mail from the original script. I added these variables to the perl script:
my $MAILLIST = 'david@itmemphis.com';
my $MAILSTRING = 'lnxutil VOM Backup Result current';
Then added this line to the end of the perl script:
system ("/bin/cat /opt/VRTSsmfcs/Backup/VOM_
Not polished, but it works. I'll split the points between you guys. Thanks for the effort!
David
my $MAILLIST = 'david@itmemphis.com';
my $MAILSTRING = 'lnxutil VOM Backup Result current';
Then added this line to the end of the perl script:
system ("/bin/cat /opt/VRTSsmfcs/Backup/VOM_
Not polished, but it works. I'll split the points between you guys. Thanks for the effort!
David
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