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Full Discussion: Need help in running a script continuously non stop
Top Forums Shell Programming and Scripting Need help in running a script continuously non stop Post 302771582 by sandeepcm on Thursday 21st of February 2013 04:31:52 AM
Old 02-21-2013
Ubuntu Need help in running a script continuously non stop
Hi,

I am running a schedular script which will check for a specific time and do the job. I wanted to run this continuously. Meaning even after the if condition is true and it executes the job, it should start running again non stop.
I am using below script
Code:
#!/bin/sh
start:
while true
do
hour=$(date +"%T")
if [ "$hour" == 18:30:00 ]; then
<Do the JOB>
goto start
fi
done

The problem I am facing here is its not recognizing start command initially. So i am not able to optimise it. Can anyone help?
Last edited by vbe; 02-21-2013 at 05:33 AM.. Reason: code tags please
 

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LEARN ABOUT OPENSOLARIS

disown

disown(1)							   User Commands							 disown(1)

NAME

       disown - ksh93 built-in function to disassociate a job with the current shell

SYNOPSIS

       disown [job ...]

DESCRIPTION

       The  ksh93  disown command prevents the current shell from sending a HUP signal to each of the specified jobs when the current shell termi-
       nates a login session.

       If job is omitted, disown sends the HUP signal to the most recently started or stopped background job.

OPERANDS

       The following operands are supported:

       job    Specifies the job or jobs on which disown operates.

	      Specify job as one of the following:

	      number	  Refers to a process ID.

	      -number	  Refers to a process group ID.

	      %number	  Refers to a job number.

	      %string	  Refers to a job whose name begins with string.

	      %?string	  Refers to a job whose name contains string.

	      %+ or %%	  Refers to the current job.

	      %-	  Refers to the previous job.

EXIT STATUS

       0     Successful completion.

       >0    One or more specified jobs does not exist.

EXAMPLES

       Example 1 Disowning a Job

       The following example disowns job 1:

	 example% disown %1

AUTHORS

       David Korn, dgk@research.att.com

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Uncommitted		   |
       +-----------------------------+-----------------------------+

SEE ALSO

       bg(1), jobs(1), ksh93(1), wait(1), attributes(5)

SunOS 5.11							    18 Apr 2007 							 disown(1)
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