01-16-2013
Script taking more time in CRONTAB
Hello All,
I have created a shell script, When i run it manually as ./<script_name> it takes 5 hours to run, but when i am scheduling it in crontab, it is taking 20 hours to run.
Please help me and advice, what can be done to reduce the time in crontab.
Thank you
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi Experts,
I am starting my unix servers with truss cmd and taking truss output in a file . But when I run it for considerabely long time, it is not stopping easily on doing ^C ..... It is taking lotz of ctrl-C's to stop.
Please let me know is there any other way to stop truss except ^C and... (1 Reply)
Discussion started by: aarora_98
1 Replies
2. Shell Programming and Scripting
Dear All
Here is the details what i want to achieve from shell scripts
I have a sever where 5 databases are created. which i having diffrent SID's.
Now i want to execute some SQL queries on each one of the databases. (SQL Query is same).That i want to acheive via crontab
Now each one of the... (2 Replies)
Discussion started by: jhon
2 Replies
3. Shell Programming and Scripting
Hi,
I have here a script which is used to purge older files/directories based on defined purge period. The script consists of 45 find commands, where each command will need to traverse through more than a million directories. Therefore a single find command executes around 22-25 mins... (7 Replies)
Discussion started by: sravicha
7 Replies
4. UNIX for Dummies Questions & Answers
Hi ,
We have 20 jobs are scheduled.
In that one of our job is taking long time ,it's not completing.
If we are not terminating it's running infinity time actually the job completion time is 5 minutes.
The job is deleting some records from the table and two insert statements and one select... (7 Replies)
Discussion started by: ajaykumarkona
7 Replies
5. UNIX for Dummies Questions & Answers
Hi
I am trying to remove some characters from my data file.
The data file has huge number of records say 90000 records.
I am using sed for this purpose.
eg :
cat FILENAME|sed 's/;//g' (to remove semi colon ';')
However as the data file is too huge , it is taking too much time to give... (3 Replies)
Discussion started by: dashing201
3 Replies
6. Shell Programming and Scripting
Legends,
Please help me to come out of the below Bermuda triangle.
I have four inputs in a shell script: A B C D
Now, If A is passed by user then, B C D will be ignored.
If C is passed by user, then A B D will be ignored.
Regards,
Sandy (11 Replies)
Discussion started by: sdosanjh
11 Replies
7. Shell Programming and Scripting
Hi everyone. Silly might be silly be I'm still new to bash. I'm trying to make an Alarm Clock for in the morning using my laptop i have wrote this Simple Script but i cant work out how to play it at a certain time.
#!/bin/bash
cd /home/josh/Music/Bruno_Mars/Hooligans/
cvlc... (8 Replies)
Discussion started by: jtsmith90
8 Replies
8. UNIX for Dummies Questions & Answers
Hi,
All the data are kept on Netapp using NFS. some directories are so fast when doing ls but few of them are slow. After doing few times, it becomes fast. Then again after few minutes, it becomes slow again. Can you advise what's going on?
This one directory I am very interested is giving... (3 Replies)
Discussion started by: samnyc
3 Replies
9. UNIX for Advanced & Expert Users
Hello,
I am trying to run a script through crontab and it runs the first time and then it does not run.
I tried to run a simple script (as shown below) and I see the same issue.
#!/bin/ksh
clear
echo "Good Morning, World." > /tmp/test123
Crontab Entry:
30 09 * * *... (9 Replies)
Discussion started by: hasn318
9 Replies
10. Red Hat
Hi,
I schedule a script on linux server and it is taking more time say "30 minutes" to send the report via mail.
Could you please suggest a way to speed up sending report to mail?
OS version -- Red Hat Enterprise Linux Server release 6.5 (Santiago)
Regards,
Maddy (2 Replies)
Discussion started by: Maddy123
2 Replies
LEARN ABOUT NETBSD
crontab
CRONTAB(1) BSD General Commands Manual CRONTAB(1)
NAME
crontab -- maintain crontab files for individual users (ISC Cron V4.1)
SYNOPSIS
crontab [-u user]
crontab [-elr]
DESCRIPTION
crontab is the program used to install, deinstall, or list the tables used to drive the cron(8) daemon in ISC Cron. Each user can have their
own crontab, and though these are files in /var/cron, they are not intended to be edited directly.
If the /var/cron/allow file exists, then you must be listed therein in order to be allowed to use this command. If the /var/cron/allow file
does not exist but the /var/cron/deny file does exist, then you must not be listed in the /var/cron/deny file in order to use this command.
If neither of these files exists, depending on the compiled in settings, only the super user will be allowed to use this command, or everyone
will be allowed to use this command. On NetBSD everyone is allowed to use this command.
The default maximum size for a crontab is 256 kilobytes, but this may be changed for all users on the system by putting the desired maximum
size (in bytes) in the /var/cron/maxtabsize file.
If the -u option is given, it specifies the name of the user whose crontab is to be tweaked. If this option is not given, crontab examines
``your'' crontab, i.e., the crontab of the person executing the command. Note that su(1) can confuse crontab and that if you are running
inside of su(1) you should always use the -u option for safety's sake.
The first form of this command is used to install a new crontab from some named file or standard input if the pseudo-filename ``-'' is given.
The -l option causes the current crontab to be displayed on standard output.
The -r option causes the current crontab to be removed.
The -e option is used to edit the current crontab using the editor specified by the VISUAL or EDITOR environment variables. After you exit
from the editor, the modified crontab will be installed automatically.
FILES
/var/cron/allow Optional list of users that are allowed to use crontab.
/var/cron/deny Optional list of users that are disallowed to use crontab.
/var/cron/maxtabsize Maximum size of crontab files. Defaults to 256 kilobytes.
/var/cron/tabs/ Directory containing the individual user crontab files, named after the user.
DIAGNOSTICS
A fairly informative usage message appears if you run it with a bad command line.
SEE ALSO
crontab(5), cron(8)
STANDARDS
The crontab command conforms to IEEE Std 1003.2 (``POSIX.2''). This new command syntax differs from previous versions of Vixie Cron, as well
as from the classic Version 3 AT&T UNIX syntax.
AUTHORS
Paul Vixie <vixie@isc.org>
BSD
May 6, 2010 BSD