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Full Discussion: Executing two commands in parallel
Top Forums Shell Programming and Scripting Executing two commands in parallel Post 302507896 by sunrexstar on Friday 25th of March 2011 04:43:32 AM
Old 03-25-2011
Executing two commands in parallel
Hi,
I am stuck into a situation where i want to execute a command in my shell script well along with a previous command in order to achieve something but i am not figuring out a way.
here is a snippet:

Code:
service management restart
rm -rf lock.file

in the above, if you see, i am trying to restart a service first.
What happens is that as soon as that command of restart starts running, there is a temporary lock file created.
However, that lock file is causing some performance issues (the restart takes a long time because of the lock file).
Now, i want to override this event by deleting the lock file as soon as the restart command runs.

so, i am looking for way where i can delete the file as soon as the restart command starts running, which i am sure will solve my problem

Is there any way where i can run both commands in parallel (executing both commands together)
Please can any one guide me on this ?
 

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LEARN ABOUT SUNOS

asadmin-restart-instance

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

NAME

       asadmin-restart-instance, restart-instance - restarts the specified server instance and all the services associated with it

SYNOPSIS

       restart-instance  [--user  admin_user]  [--password admin_password] [--host localhost] [--port 4848] [--local=false] [--domain domain_name]
       [--passwordfile filename] [--secure|-s]instance_name

       Use the restart-instance to restart the instance with the instance name specified. The restart-instance command can be run both locally and
       remotely.  To restart remotely, the administration server must be running on the hostname and port number specified. The user authenticates
       using the password identified for the administration server. Additionally, the instance must already exist within the domain served by  the
       administration server, and the instance must be running.  The restart-instance command is not supported on Windows.

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 restarted.

       Example 1: Using restart-instance in local mode

       asadmin> restart-instance --local --domain domain1 server1
       Instance server1 started

       Where: server1 is the name of the instance restarted on the domain1 domain.

       Example 2: Using restart-instance in remote mode

       asadmin> restart-instance --user admin --password adminadmin --host bluestar --port 4848 server1
       Instance server1 started

       Where:  server1	is the name of the instance restarted. The restarted instance is associated with the user, password, host, and port number
       specified.

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-stop-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-restart-instance(1AS)
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