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Full Discussion: Loop to run commands - after the previous instance completed
Top Forums Shell Programming and Scripting Loop to run commands - after the previous instance completed Post 303014107 by neil.k on Monday 5th of March 2018 10:49:58 AM
Old 03-05-2018
Loop to run commands - after the previous instance completed
Hi All,

I am trying to call a shell script in a loop. I want my first instance to complete, and then the 2nd instance of the command to start - and so on.

eg. I am running this script 30 times. The wrapper script needs business date, from_time,to_time & server_name as inputs.

Code:
script_name businees_date from_time to_time server_name
--------------------------------------------------------
wrapper.sh "20180305" "09:30:00" "09:30:59" P6
wrapper.sh "20180305" "09:31:00" "09:31:59" P6
wrapper.sh "20180305" "09:32:00" "09:32:59" P6

The wrapper script takes almost 8-10 minutes to execute per run.

With my below code, it calls the wrapper script "n" times, without waiting for the previous instance of the command to complete.
How do I make the 1st instance of the wrapper to finish, before the 2nd gets called - and so on.

Code:
bdate=`date +%Y%m%d`
server_name=P6
script='wrapper.sh'
config=min_by_min.txt

while read -r from_time to_time; do
$script $bdate $from_time $to_time $server_name
done < $config

The config file looks like this.
Code:
$head -4 min_by_min.txt
"09:30:00" "09:30:59"
"09:31:00" "09:31:59"
"09:32:00" "09:32:59"
"09:33:00" "09:33:59"

Can you guys please help?
Last edited by rbatte1; 03-06-2018 at 08:11 AM.. Reason: Added CODE tags round the input/output
 

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LEARN ABOUT SUNOS

asadmin-stop-instance

asadmin-stop-instance(1AS)					   User Commands					asadmin-stop-instance(1AS)

NAME

       asadmin-stop-instance, stop-instance - stops the specified server instance and all the services associated with it

SYNOPSIS

       stop-instance  [--user  admin_user]  [--password  admin_password]  [--host local_host] [--port 4848] [--local=false] [--domain domain_name]
       [--secure|-s]instance_name

       Use the stop-instance to stop the instance with the instance name specified. The stop-instance can be run both locally and  remotely.   The
       named instance must already exist within the given domain; and the instance must be running.

OPTIONS

       --user		       administrative user associated for the instance.

       --password	       administrative password corresponding to the administrative user.

       --host		       host name of the machine hosting the administrative instance.

       --port		       administrative port number associated with the administrative host.

       --local		       determines if the command should delegate the request to administrative instance or run locally.

       --domain 	       name of the domain.

       --passwordfile	       file containing passwords appropriate for the command (e.g., administrative instance).

       --secure 	       if true, uses SSL/TLS to communicate with the administrative instance.

OPERANDS

       instance_name	       name of the instance to be stopped.

       Example 1: Using stop-instance in local mode

       asadmin> stop-instance --local --domain domain1 server1
       Instance server1 stopped

       Where: the server1 instance associated with the domain1 domain is stopped locally.

       Example 2: Using stop-instance in remote mode

       asadmin> stop-instance --user admin --password bluestar --host localhost --port 4848 server1
       Instance server1 stopped

       Where: the server1 instance associated with the named user, password, host and port is deleted from the remote machine.

EXIT STATUS

       0		       command executed successfully

       1		       error in executing the command

INTERFACE EQUIVALENT

       Server Instance page

       asadmin-delete-instance(1AS),   asadmin-start-instance(1AS),  asadmin-create-instance(1AS),  asadmin-restart-instance(1AS),  asadmin-start-
       appserv(1AS), asadmin-stop-appserv(1AS), asadmin-start-domain(1AS), asadmin-stop-domain(1AS)

J2EE 1.4 SDK							    March 2004						asadmin-stop-instance(1AS)
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