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Top Forums Shell Programming and Scripting recurring run of sh script in crontab Post 302116715 by Perderabo on Monday 7th of May 2007 07:38:13 PM
Old 05-07-2007
The first five fields are:
minute (0-59)
hour (0-23)
day of the month(1-31)
month of the year (1-12)
day of the week (0-6 with 0 = Sunday)

* 21 * * * (sqlplus hotback/hotback @/oracle/backups/bla-bla/scripts/hotback/daily_hotback.sql)
means run the job every minute of every hour 21.

0 21 * * * (sqlplus hotback/hotback @/oracle/backups/bla-bla/scripts/hotback/daily_hotback.sql)
means run the job on the first minute of hour 21.

Yes this is the change you need. Although
5 21 * * * (sqlplus hotback/hotback @/oracle/backups/bla-bla/scripts/hotback/daily_hotback.sql)
or something like that might be just as good. You need to change that asterisk to some specific minute so it will run only once during hour 21.
 

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HYLAFAX-SHUTDOWN(5)						File Formats Manual					       HYLAFAX-SHUTDOWN(5)

NAME
etc/shutdown - server shutdown control file DESCRIPTION
If the file etc/shutdown is present it describes when a HylaFAX server is to be shutdown and may contain a descriptive message to return to clients explaining the reason for the shutdown. This file is used by the hfaxd(8) program. The file has the following format: <year> <month> <day> <hour> <minute> <deny> <disconnect> <shutdown message text> The first line defines the date and time the server should be shutdown and the time preceding at which unprivileged clients should be denied service or disconnected; these fields are described in more detail below. Any lines that follow the first are taken as the text of a message to return to clients when notifying them of a scheduled shutdown or when denying them service. <year> The decimal year; e.g. 1996. <month> The decimal month; e.g. 10 for October. <day> The decimal day of the month in the range [1..31]. <hour> The decimal hour since midnight; in the range [0..23]. <minute> The decimal minute after the hour; in the range [0..59]. <deny> The time prior to the shutdown time at which to deny service to unprivileged clients. This value is specified as decimal number in the form HHMM; e.g. 130 for 1 hour and 30 minutes. <disconnect> Time time prior to the shutdown time at which to disconnect unprivileged clients that are logged in to the server. This value is specified as a decimal number in the form HHMM. NOTES
This file is typically created using the ``SHUT'' command supported by hfaxd(8). SEE ALSO
hfaxd(8), hylafax-server(5) January 18, 1996 HYLAFAX-SHUTDOWN(5)
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