Re: Unix - scheduling - I know this, it's a UNIX system
This will run the job every 28 daze at 1am. If that's not exactly the definition of every 4th week let me know and I'll work something out. Also note that you will have an anomaly at the end of leap years. 0 1 * * * /usr/bin/ksh -c '[ $(($(date '+\%j') \% 28)) -eq 0 ] /path/to/my/job/the_job' Roland.Skoldblom@ ica.se To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Sent by: cc: [EMAIL PROTECTED] Subject: Unix - scheduling 07/02/02 01:43 AM Please respond to ORACLE-L Hallo, anyone who has a good example on how to write in the crontab if you want to schedule a job to run every four week. Is it possible to do that in unix cron job schedule. Thanks in advance Roland -- -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: Unix - scheduling - I know this, it's a UNIX system
-- [EMAIL PROTECTED] on 07/03/02 14:13:30 -0800 This will run the job every 28 daze at 1am. If that's not exactly the definition of every 4th week let me know and I'll work something out. Also note that you will have an anomaly at the end of leap years. 0 1 * * * /usr/bin/ksh -c '[ $(($(date '+\%j') \% 28)) -eq 0 ] /path/to/my/job/the_job' %j day of year (001..366) Two problems are not adjusting the initial start date (simple enough, adding a constant) and 365 % 28 != 0. The last will give you an extended period once per year. The only reliable way to handle this requries gnu date, which has %s == system time in GMT: [ $(( ($(date +%s) + $INITIAL_DATE_OFFSET) % 2419200 )) -eq 0 ] /blah; Is a bit grimy but works. The wallclock time may shift slightly during the DST correction but the basic interval works. The one-second resolution can cause problems if crond doesn't run exactly on the minute; this can be corrected by taking the integer portion after dividing by 60 and comparing that. At which point it's better to give up on cron entirely and use at, which does all of this mess for you and handles cron outages also (which the above doesn't). -- Steven Lembark 2930 W. Palmer Workhorse Computing Chicago, IL 60647 +1 800 762 1582 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: Unix - scheduling - I know this, it's a UNIX system
I knew about the start date/offset thingy, but hey, ya gotta leave him something to figure out As for the end of year, yeah, you're right. Every year is a problem. Since this is an Oracle news list we could just call Oracle from our shell script and ask for the daze since some constant date and today, do the mod 28 math, and if it's zero, confinue to run the script, otherwise end. I was just trying to show an inventive way to use cron. Have a good 4th all. [EMAIL PROTECTED] om To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Sent by: cc: [EMAIL PROTECTED] Subject: Re: Unix - scheduling - I know this, it's a UNIX system 07/03/02 03:39 PM Please respond to ORACLE-L -- [EMAIL PROTECTED] on 07/03/02 14:13:30 -0800 This will run the job every 28 daze at 1am. If that's not exactly the definition of every 4th week let me know and I'll work something out. Also note that you will have an anomaly at the end of leap years. 0 1 * * * /usr/bin/ksh -c '[ $(($(date '+\%j') \% 28)) -eq 0 ] /path/to/my/job/the_job' %j day of year (001..366) Two problems are not adjusting the initial start date (simple enough, adding a constant) and 365 % 28 != 0. The last will give you an extended period once per year. The only reliable way to handle this requries gnu date, which has %s == system time in GMT: [ $(( ($(date +%s) + $INITIAL_DATE_OFFSET) % 2419200 )) -eq 0 ] /blah; Is a bit grimy but works. The wallclock time may shift slightly during the DST correction but the basic interval works. The one-second resolution can cause problems if crond doesn't run exactly on the minute; this can be corrected by taking the integer portion after dividing by 60 and comparing that. At which point it's better to give up on cron entirely and use at, which does all of this mess for you and handles cron outages also (which the above doesn't). -- Steven Lembark 2930 W. Palmer Workhorse Computing Chicago, IL 60647 +1 800 762 1582 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Unix - scheduling
Hallo, anyone who has a good example on how to write in the crontab if you want to schedule a job to run every four week. Is it possible to do that in unix cron job schedule. Thanks in advance Roland -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: Unix - scheduling
Hallo, anyone who has a good example on how to write in the crontab if you want to schedule a job to run every four week. Is it possible to do that in unix cron job schedule. Thanks in advance Roland Roland, Please, just for once, couldn't you try to figure out things by yourself and type 'man crontab'? I am naively optimistic about human nature but you make me despair. I'd be really happy to read one day from one of your posts something you have picked up in a doc I have not had time to read myself. Really. Regards, Stephane Faroult Oriole -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Stephane Faroul INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: Unix - scheduling
anyone who has a good example on how to write in the crontab if you want to schedule
a job to run every four week.
Is it possible to do that in unix cron job schedule.
Yes, it is very possible.
Run 'crontab -e' as apropeate user. Your $EDITOR will open.
Write as described in crontab(5) manual ('man 5 crontab'):
0 */4 * * * your_command
This will run your_command every four hours (first field which minutes,
second field in which hours)
You can also edit the /etc/crontab-file (if avaible on your system.) This
file has a different syntax (you specify the user who is going to run the
command too.)
--
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Home Phone: +46 (0)18 30 09 19
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Re: Unix - scheduling
Please don't use 'crontab -e', unless you are saving your
crontab files and using some form of version control on them.
'crontabe -e' is inherently dangerous, as it is too easy to remove
lines unintentionally, and then they are gone for good.
Jared
On Tuesday 02 July 2002 04:28, Nils Höglund wrote:
anyone who has a good example on how to write in the crontab if you want
to schedule a job to run every four week. Is it possible to do that in
unix cron job schedule.
Yes, it is very possible.
Run 'crontab -e' as apropeate user. Your $EDITOR will open.
Write as described in crontab(5) manual ('man 5 crontab'):
0 */4 * * * your_command
This will run your_command every four hours (first field which minutes,
second field in which hours)
You can also edit the /etc/crontab-file (if avaible on your system.) This
file has a different syntax (you specify the user who is going to run the
command too.)
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Re: Unix - scheduling
-- [EMAIL PROTECTED] on 07/02/02 00:43:19 -0800 Hallo, anyone who has a good example on how to write in the crontab if you want to schedule a job to run every four week. Is it possible to do that in unix cron job schedule. Monthly is doable. Every 28 days requires using at, or a more flexable scheduling tool. That or cron the job daily and have it decide whether 28 days have passed since it last ran (e.g., based on a time string stored in a file). -- Steven Lembark 2930 W. Palmer Workhorse Computing Chicago, IL 60647 +1 800 762 1582 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: Unix - scheduling
-- Nils Höglund [EMAIL PROTECTED] on 07/02/02 03:28:20 -0800 0 */4 * * * your_command $ man 5 cronttab; The time and date fields are: field allowed values - -- minute 0-59 hour 0-23 day of month 1-31 month 1-12 (or names, see below) day of week0-7 (0 or 7 is Sun, or use names) A field may be an asterisk (*), which always stands for ``first-last''. Ranges of numbers are allowed. Ranges are two numbers separated with a hyphen. The specified range is inclusive. For example, 8-11 for an ``hours'' entry specifies execution at hours 8, 9, 10 and 11. Lists are allowed. A list is a set of numbers (or ranges) separated by commas. Examples: ``1,2,5,9'', ``0-4,8-12''. : Question: how does 0 */4 * * * cause something to run every 4 weeks? Unless your version has a different field order. It might work to try * */628 * * * but I'm not sure that cron allows n24 for the hourly divisor. The combination of date and weekday can approximate the 4-week cycle. -- Steven Lembark 2930 W. Palmer Workhorse Computing Chicago, IL 60647 +1 800 762 1582 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: Unix - scheduling
http://www.superscripts.com/tutorial/crontab.html On Tue, 2 Jul 2002 [EMAIL PROTECTED] wrote: Hallo, anyone who has a good example on how to write in the crontab if you want to schedule a job to run every four week. Is it possible to do that in unix cron job schedule. Thanks in advance Roland -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Alex INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: Unix - scheduling
Title: RE: Unix - scheduling Is a strick 14 day rule absolutely necessary, if not...a much more hassle free way would be to simply schedule the cronjob to run on the 1st and 15th of each month, i.e. # Min Hr Day Mon WkDay Command 0 0 1,15 * * script -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 02, 2002 11:13 AM To: Multiple recipients of list ORACLE-L Subject: Re: Unix - scheduling -- Nils Höglund [EMAIL PROTECTED] on 07/02/02 03:28:20 -0800 0 */4 * * * your_command $ man 5 cronttab; The time and date fields are: field allowed values - -- minute 0-59 hour 0-23 day of month 1-31 month 1-12 (or names, see below) day of week 0-7 (0 or 7 is Sun, or use names) A field may be an asterisk (*), which always stands for ``first-last''. Ranges of numbers are allowed. Ranges are two numbers separated with a hyphen. The specified range is inclusive. For example, 8-11 for an ``hours'' entry specifies execution at hours 8, 9, 10 and 11. Lists are allowed. A list is a set of numbers (or ranges) separated by commas. Examples: ``1,2,5,9'', ``0-4,8-12''. : Question: how does 0 */4 * * * cause something to run every 4 weeks? Unless your version has a different field order. It might work to try * */628 * * * but I'm not sure that cron allows n24 for the hourly divisor. The combination of date and weekday can approximate the 4-week cycle. -- Steven Lembark 2930 W. Palmer Workhorse Computing Chicago, IL 60647 +1 800 762 1582 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: Unix - scheduling
Roland, crontab alone will not meet your needs. Hint: check the date command and MOD type fuctionality in a shell script. Good luck, Mike -Original Message- Sent: Tuesday, July 02, 2002 6:14 AM To: Multiple recipients of list ORACLE-L Hallo, anyone who has a good example on how to write in the crontab if you want to schedule a job to run every four week. Is it possible to do that in unix cron job schedule. Thanks in advance Roland Roland, Please, just for once, couldn't you try to figure out things by yourself and type 'man crontab'? I am naively optimistic about human nature but you make me despair. I'd be really happy to read one day from one of your posts something you have picked up in a doc I have not had time to read myself. Really. Regards, Stephane Faroult Oriole -- -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Hand, Michael T INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: Unix - scheduling
He specified that 0 */4 * * * would cause it to run every 4 hours. He provided an example. -Original Message- Sent: Tuesday, July 02, 2002 11:13 AM To: Multiple recipients of list ORACLE-L -- Nils Höglund [EMAIL PROTECTED] on 07/02/02 03:28:20 -0800 0 */4 * * * your_command $ man 5 cronttab; The time and date fields are: field allowed values - -- minute 0-59 hour 0-23 day of month 1-31 month 1-12 (or names, see below) day of week0-7 (0 or 7 is Sun, or use names) A field may be an asterisk (*), which always stands for ``first-last''. Ranges of numbers are allowed. Ranges are two numbers separated with a hyphen. The specified range is inclusive. For example, 8-11 for an ``hours'' entry specifies execution at hours 8, 9, 10 and 11. Lists are allowed. A list is a set of numbers (or ranges) separated by commas. Examples: ``1,2,5,9'', ``0-4,8-12''. : Question: how does 0 */4 * * * cause something to run every 4 weeks? Unless your version has a different field order. It might work to try * */628 * * * but I'm not sure that cron allows n24 for the hourly divisor. The combination of date and weekday can approximate the 4-week cycle. -- Steven Lembark 2930 W. Palmer Workhorse Computing Chicago, IL 60647 +1 800 762 1582 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). This message originated from the internet. Its originator may not be who they claim to be and the information contained herein my or may not be Accurate. All Messages are Scaned to be Virus Free, by IPM, powered by McAfee. -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Michael Cupp INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: Unix - scheduling
Title: RE: Unix - scheduling U...think they slipped something into my Mountain Dew while I wasn't looking so that they could log into production directly via SQL*Plus and make some manual changes...I must have still been regaining my senses when I sent this...sorry :) -Original Message-From: Richard Huntley [mailto:[EMAIL PROTECTED]]Sent: Tuesday, July 02, 2002 11:58 AMTo: Multiple recipients of list ORACLE-LSubject: RE: Unix - scheduling Is a strick 14 day rule absolutely necessary, if not...a much more hassle free way would be to simply schedule the cronjob to run on the 1st and 15th of each month, i.e. # Min Hr Day Mon WkDay Command 0 0 1,15 * * script -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 02, 2002 11:13 AM To: Multiple recipients of list ORACLE-L Subject: Re: Unix - scheduling -- Nils Höglund [EMAIL PROTECTED] on 07/02/02 03:28:20 -0800 0 */4 * * * your_command $ man 5 cronttab; The time and date fields are: field allowed values - -- minute 0-59 hour 0-23 day of month 1-31 month 1-12 (or names, see below) day of week 0-7 (0 or 7 is Sun, or use names) A field may be an asterisk (*), which always stands for ``first-last''. Ranges of numbers are allowed. Ranges are two numbers separated with a hyphen. The specified range is inclusive. For example, 8-11 for an ``hours'' entry specifies execution at hours 8, 9, 10 and 11. Lists are allowed. A list is a set of numbers (or ranges) separated by commas. Examples: ``1,2,5,9'', ``0-4,8-12''. : Question: how does "0 */4 * * *" cause something to run every 4 weeks? Unless your version has a different field order. It might work to try "* */628 * * *" but I'm not sure that cron allows n24 for the hourly divisor. The combination of date and weekday can approximate the 4-week cycle. -- Steven Lembark 2930 W. Palmer Workhorse Computing Chicago, IL 60647 +1 800 762 1582 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: Unix - scheduling
0 */4 * * * your_command
The */4 must be linux. This is not available on HP-UX 11.0.
Ron Thomas
Hypercom, Inc
[EMAIL PROTECTED]
The problem with some people is that when they aren't drunk, they're sober.
--William Butler
Yeats.
[EMAIL PROTECTED]
Sent by: To: [EMAIL PROTECTED]
[EMAIL PROTECTED] cc:
Subject: Re: Unix - scheduling
07/02/02 04:28 AM
Please respond to
ORACLE-L
anyone who has a good example on how to write in the crontab if you want to schedule
a job to run
every four week.
Is it possible to do that in unix cron job schedule.
Yes, it is very possible.
Run 'crontab -e' as apropeate user. Your $EDITOR will open.
Write as described in crontab(5) manual ('man 5 crontab'):
0 */4 * * * your_command
This will run your_command every four hours (first field which minutes,
second field in which hours)
You can also edit the /etc/crontab-file (if avaible on your system.) This
file has a different syntax (you specify the user who is going to run the
command too.)
--
/Nils Höglund, Naqua KB
E-mail: [EMAIL PROTECTED]
Web:http://www.naqua.se/
Home Phone: +46 (0)18 30 09 19
Cellular Phone: +46 (0)709 91 97 65
Address:Nya Valsätrav. 26 B
SE-756 46
Uppsala, Sweden
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--
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RE: Unix - scheduling
Title: Message He wanted every 4 weeks - -Original Message-From: Richard Huntley [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 02, 2002 11:58 AMTo: Multiple recipients of list ORACLE-LSubject: RE: Unix - scheduling Is a strick 14 day rule absolutely necessary, if not...a much more hassle free way would be to simply schedule the cronjob to run on the 1st and 15th of each month, i.e. # Min Hr Day Mon WkDay Command 0 0 1,15 * * script -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 02, 2002 11:13 AM To: Multiple recipients of list ORACLE-L Subject: Re: Unix - scheduling -- Nils Höglund [EMAIL PROTECTED] on 07/02/02 03:28:20 -0800 0 */4 * * * your_command $ man 5 cronttab; The time and date fields are: field allowed values - -- minute 0-59 hour 0-23 day of month 1-31 month 1-12 (or names, see below) day of week 0-7 (0 or 7 is Sun, or use names) A field may be an asterisk (*), which always stands for ``first-last''. Ranges of numbers are allowed. Ranges are two numbers separated with a hyphen. The specified range is inclusive. For example, 8-11 for an ``hours'' entry specifies execution at hours 8, 9, 10 and 11. Lists are allowed. A list is a set of numbers (or ranges) separated by commas. Examples: ``1,2,5,9'', ``0-4,8-12''. : Question: how does "0 */4 * * *" cause something to run every 4 weeks? Unless your version has a different field order. It might work to try "* */628 * * *" but I'm not sure that cron allows n24 for the hourly divisor. The combination of date and weekday can approximate the 4-week cycle. -- Steven Lembark 2930 W. Palmer Workhorse Computing Chicago, IL 60647 +1 800 762 1582 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). This message originated from the internet. Its originator may not be who they claim to be and the information contained herein my or may not be Accurate. All Messages are Scaned to be Virus Free, by IPM, powered by McAfee.
Re: Unix - scheduling
Aww, come on, crontab -e isn't that bad! The most dangerous thing
about it is accidentally running crontab -r instead of -e. Using crontab
-e is no worse than using a wildcard with the rm command, i.e. 'rm a *'
instead of 'rm a*'. One deletes all files that start with 'a', the other
deletes a file named 'a' plus everything else in your directory. Like
anything else, just be careful when you're using crontab and you shouldn't
have any problems. If you can't do things carefully, you probably won't
make it too long as a DBA anyway.
Although, if you are a vi novice and using it to edit your crontab,
then I would agree with Jared. A few wrong keystrokes in command mode and
you can trash a file real quick
Just my $.02,
Alan
P.S. I do recommend making a backup of your crontab occasionally
though
Jared Still
jkstill@cybco To: Multiple recipients of list ORACLE-L
[EMAIL PROTECTED]
n.com cc:
Sent by: Subject: Re: Unix - scheduling
[EMAIL PROTECTED]
om
07/02/02 09:03
AM
Please respond
to ORACLE-L
Please don't use 'crontab -e', unless you are saving your
crontab files and using some form of version control on them.
'crontabe -e' is inherently dangerous, as it is too easy to remove
lines unintentionally, and then they are gone for good.
Jared
On Tuesday 02 July 2002 04:28, Nils Höglund wrote:
anyone who has a good example on how to write in the crontab if you
want
to schedule a job to run every four week. Is it possible to do that in
unix cron job schedule.
Yes, it is very possible.
Run 'crontab -e' as apropeate user. Your $EDITOR will open.
Write as described in crontab(5) manual ('man 5 crontab'):
0 */4 * * * your_command
This will run your_command every four hours (first field which minutes,
second field in which hours)
You can also edit the /etc/crontab-file (if avaible on your system.) This
file has a different syntax (you specify the user who is going to run the
command too.)
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Jared Still
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RE: Unix - scheduling
Title: Message Possible could use at, and have the job re-schedule itself for 4 weeks when it first starts - just a thought -Original Message-From: Richard Huntley [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 02, 2002 11:58 AMTo: Multiple recipients of list ORACLE-LSubject: RE: Unix - scheduling Is a strick 14 day rule absolutely necessary, if not...a much more hassle free way would be to simply schedule the cronjob to run on the 1st and 15th of each month, i.e. # Min Hr Day Mon WkDay Command 0 0 1,15 * * script -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 02, 2002 11:13 AM To: Multiple recipients of list ORACLE-L Subject: Re: Unix - scheduling -- Nils Höglund [EMAIL PROTECTED] on 07/02/02 03:28:20 -0800 0 */4 * * * your_command $ man 5 cronttab; The time and date fields are: field allowed values - -- minute 0-59 hour 0-23 day of month 1-31 month 1-12 (or names, see below) day of week 0-7 (0 or 7 is Sun, or use names) A field may be an asterisk (*), which always stands for ``first-last''. Ranges of numbers are allowed. Ranges are two numbers separated with a hyphen. The specified range is inclusive. For example, 8-11 for an ``hours'' entry specifies execution at hours 8, 9, 10 and 11. Lists are allowed. A list is a set of numbers (or ranges) separated by commas. Examples: ``1,2,5,9'', ``0-4,8-12''. : Question: how does "0 */4 * * *" cause something to run every 4 weeks? Unless your version has a different field order. It might work to try "* */628 * * *" but I'm not sure that cron allows n24 for the hourly divisor. The combination of date and weekday can approximate the 4-week cycle. -- Steven Lembark 2930 W. Palmer Workhorse Computing Chicago, IL 60647 +1 800 762 1582 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). This message originated from the internet. Its originator may not be who they claim to be and the information contained herein my or may not be Accurate. All Messages are Scaned to be Virus Free, by IPM, powered by McAfee.
RE: Unix - scheduling
Roland, I'm assuming that every 4 weeks means every 28 days which means same day of the week (Every 4th Friday for example) If this meets your requirements then you can try the suggestion at this link: http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x1b397b8d1de3d5118ff40090279 cd0f9,00.html Read A. Clay Stephenson's solution to this. Click the little paper clip in the top right hand corner of his post. You will need that attachment to run with your script. Ed -Original Message- Sent: Tuesday, July 02, 2002 4:43 AM To: Multiple recipients of list ORACLE-L Hallo, anyone who has a good example on how to write in the crontab if you want to schedule a job to run every four week. Is it possible to do that in unix cron job schedule. Thanks in advance Roland -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). * * * * * Freedom of Information Act Notice * * * * * The information in this email is subject to the record protection mandated by 5 United States Code 552 (b) (4) and relevant judicial opinions. -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Sherman, Edward INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: Unix - scheduling
If you can't do things carefully, you probably won't
make it too long as a DBA anyway.
Not using 'crontab -e' *is* being careful. :)
Jared
[EMAIL PROTECTED]
Sent by: [EMAIL PROTECTED]
07/02/2002 10:14 AM
Please respond to ORACLE-L
To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED]
cc:
Subject:Re: Unix - scheduling
Aww, come on, crontab -e isn't that bad! The most dangerous thing
about it is accidentally running crontab -r instead of -e. Using crontab
-e is no worse than using a wildcard with the rm command, i.e. 'rm a *'
instead of 'rm a*'. One deletes all files that start with 'a', the other
deletes a file named 'a' plus everything else in your directory. Like
anything else, just be careful when you're using crontab and you shouldn't
have any problems. If you can't do things carefully, you probably won't
make it too long as a DBA anyway.
Although, if you are a vi novice and using it to edit your crontab,
then I would agree with Jared. A few wrong keystrokes in command mode and
you can trash a file real quick
Just my $.02,
Alan
P.S. I do recommend making a backup of your crontab occasionally
though
Jared Still
jkstill@cybco To: Multiple recipients of
list ORACLE-L [EMAIL PROTECTED]
n.com cc:
Sent by: Subject: Re: Unix -
scheduling
[EMAIL PROTECTED]
om
07/02/02 09:03
AM
Please respond
to ORACLE-L
Please don't use 'crontab -e', unless you are saving your
crontab files and using some form of version control on them.
'crontabe -e' is inherently dangerous, as it is too easy to remove
lines unintentionally, and then they are gone for good.
Jared
On Tuesday 02 July 2002 04:28, Nils Höglund wrote:
anyone who has a good example on how to write in the crontab if you
want
to schedule a job to run every four week. Is it possible to do that in
unix cron job schedule.
Yes, it is very possible.
Run 'crontab -e' as apropeate user. Your $EDITOR will open.
Write as described in crontab(5) manual ('man 5 crontab'):
0 */4 * * * your_command
This will run your_command every four hours (first field which minutes,
second field in which hours)
You can also edit the /etc/crontab-file (if avaible on your system.)
This
file has a different syntax (you specify the user who is going to run
the
command too.)
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Jared Still
INET: [EMAIL PROTECTED]
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also send the HELP command for other information (like subscribing).
--
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Re: Unix - scheduling
-- Ron Thomas [EMAIL PROTECTED] on 07/02/02 09:03:26 -0800 0 */4 * * * your_command The */4 must be linux. This is not available on HP-UX 11.0. Introduced by Paul Vixie into vixiecron, subsequently adopted by a number of cron implementations. HP's is, unfortunately, not one of them. Sun's might, AIX doesn't. The Schedule::Cron module does support this notation, along with adding any other extenders you like since you can have your own dispatcher. -- Steven Lembark 2930 W. Palmer Workhorse Computing Chicago, IL 60647 +1 800 762 1582 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: Unix - scheduling
-- Hand, Michael T [EMAIL PROTECTED] on 07/02/02 08:13:32 -0800 Roland, crontab alone will not meet your needs. Hint: check the date command and MOD type fuctionality in a shell script. The at command will normally take number of days from now as the when to run argument. Simply have the job re-submit itself and output an error message if at returns non-zero. This will give you one-minute resolution on the start times with arbitrary re-run intervals as required for you program (in this case, 14 or 28 days). -- Steven Lembark 2930 W. Palmer Workhorse Computing Chicago, IL 60647 +1 800 762 1582 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: Unix - scheduling
not available on Sun (vers 5.8) - just tried it. nor Digital UNIX. cool though ;-) -Original Message- Sent: Tuesday, July 02, 2002 1:39 PM To: Multiple recipients of list ORACLE-L -- Ron Thomas [EMAIL PROTECTED] on 07/02/02 09:03:26 -0800 0 */4 * * * your_command The */4 must be linux. This is not available on HP-UX 11.0. Introduced by Paul Vixie into vixiecron, subsequently adopted by a number of cron implementations. HP's is, unfortunately, not one of them. Sun's might, AIX doesn't. The Schedule::Cron module does support this notation, along with adding any other extenders you like since you can have your own dispatcher. -- Steven Lembark 2930 W. Palmer Workhorse Computing Chicago, IL 60647 +1 800 762 1582 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: STEVE OLLIG INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: Unix - scheduling
Jared,
Point taken. So I guess I like to live on the edge a little... :)
I've been using crontab -e for years without problems though. knock on
wood.
Alan
Jared.Still@ra
disys.comTo: Multiple recipients of list ORACLE-L
[EMAIL PROTECTED]
Sent by: cc:
[EMAIL PROTECTED] Subject: Re: Unix - scheduling
om
07/02/02 12:26
PM
Please respond
to ORACLE-L
If you can't do things carefully, you probably won't
make it too long as a DBA anyway.
Not using 'crontab -e' *is* being careful. :)
Jared
[EMAIL PROTECTED]
Sent by: [EMAIL PROTECTED]
07/02/2002 10:14 AM
Please respond to ORACLE-L
To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED]
cc:
Subject:Re: Unix - scheduling
Aww, come on, crontab -e isn't that bad! The most dangerous thing
about it is accidentally running crontab -r instead of -e. Using crontab
-e is no worse than using a wildcard with the rm command, i.e. 'rm a *'
instead of 'rm a*'. One deletes all files that start with 'a', the other
deletes a file named 'a' plus everything else in your directory. Like
anything else, just be careful when you're using crontab and you shouldn't
have any problems. If you can't do things carefully, you probably won't
make it too long as a DBA anyway.
Although, if you are a vi novice and using it to edit your crontab,
then I would agree with Jared. A few wrong keystrokes in command mode and
you can trash a file real quick
Just my $.02,
Alan
P.S. I do recommend making a backup of your crontab occasionally
though
Jared Still
jkstill@cybco To: Multiple recipients of
list ORACLE-L [EMAIL PROTECTED]
n.com cc:
Sent by: Subject: Re: Unix -
scheduling
[EMAIL PROTECTED]
om
07/02/02 09:03
AM
Please respond
to ORACLE-L
Please don't use 'crontab -e', unless you are saving your
crontab files and using some form of version control on them.
'crontabe -e' is inherently dangerous, as it is too easy to remove
lines unintentionally, and then they are gone for good.
Jared
On Tuesday 02 July 2002 04:28, Nils Höglund wrote:
anyone who has a good example on how to write in the crontab if you
want
to schedule a job to run every four week. Is it possible to do that in
unix cron job schedule.
Yes, it is very possible.
Run 'crontab -e' as apropeate user. Your $EDITOR will open.
Write as described in crontab(5) manual ('man 5 crontab'):
0 */4 * * * your_command
This will run your_command every four hours (first field which minutes,
second field in which hours)
You can also edit the /etc/crontab-file (if avaible on your system.)
This
file has a different syntax (you specify the user who is going to run
the
command too.)
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Jared Still
INET: [EMAIL PROTECTED]
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also send the HELP
Re: Unix - scheduling
The */4 must be linux. This is not available on HP-UX 11.0. It works on BSD-systems too. -- /Nils Höglund, Naqua KB E-mail: [EMAIL PROTECTED] Web:http://www.naqua.se/ Home Phone: +46 (0)18 30 09 19 Cellular Phone: +46 (0)709 91 97 65 Address:Nya Valsätrav. 26 B SE-756 46 Uppsala, Sweden -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: =?iso-8859-1?Q?Nils_H=F6glund?= INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: Unix - scheduling
The */4 must be linux. This is not available on HP-UX 11.0. Introduced by Paul Vixie into vixiecron, subsequently adopted by a number of cron implementations. HP's is, unfortunately, not one of them. Sun's might, AIX doesn't. It does not work on Solaris 8. -- /Nils Höglund, Naqua KB E-mail: [EMAIL PROTECTED] Web:http://www.naqua.se/ Home Phone: +46 (0)18 30 09 19 Cellular Phone: +46 (0)709 91 97 65 Address:Nya Valsätrav. 26 B SE-756 46 Uppsala, Sweden -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: =?iso-8859-1?Q?Nils_H=F6glund?= INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: Unix - scheduling
He wanted every 4 weeks - Whoops! I miss-read. Thanks for the correction! -- /Nils Höglund, Naqua KB E-mail: [EMAIL PROTECTED] Web:http://www.naqua.se/ Home Phone: +46 (0)18 30 09 19 Cellular Phone: +46 (0)709 91 97 65 Address:Nya Valsätrav. 26 B SE-756 46 Uppsala, Sweden -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: =?iso-8859-1?Q?Nils_H=F6glund?= INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: Unix - scheduling
It does not work on Solaris 8. SunOS (a.k.a. BSD) used vixiecron; they dumped it when Solaris went SVR4. You can still find workable copies of Paul's original work (pretty ancient by now). Alternative it to use perl with Schedule::Cron to process the lines. It understands */X notation and passes the entire line to whatever dispatcher you choose -- which can interpret the rest of your cron line as whatever it likes. For example: * */24 * * * */28 /path/to/code Would check for the 28th day ever 24 hours :-) Probably the best bet for something like this is at, however, since it remembers the date + time that the event was scheduled for. This allows re-starting cron any number of times w/o resetting the start date used by at. -- Steven Lembark 2930 W. Palmer Workhorse Computing Chicago, IL 60647 +1 800 762 1582 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
