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Full Discussion: Passing regular expression to nawk
Top Forums Shell Programming and Scripting Passing regular expression to nawk Post 302833335 by kchinnam on Wednesday 17th of July 2013 12:39:19 AM
Old 07-17-2013
Passing regular expression to nawk
I am trying to test if I can replace a regular expression in 'nawk' with a variable.
Please let me know why it is not working. I am using ksh88i on solaris8
I am trying use this test as a building block to filter active external DNS connections.

Ideally I want to pass variable defined outside nawk as an argument to it.

Code:
# Here I am printing only DNS names.
$> echo server1.domain1.domain2.com  | nawk '/^[a-z0-9]*\.[a-z0-9]*\.[a-z0-9]*\.[a-z0-9]*/{print}'
server1.domain1.domain2.com 

# Here I am trying to pass same pattern as a variable, its not working.
$>echo server1.domain1.domain2.com | nawk -v re='^[a-z0-9]*\.[a-z0-9]*\.[a-z0-9]*\.[a-z0-9]*' '/re/{print}'

Last edited by kchinnam; 07-17-2013 at 01:45 AM.. Reason: typo
 

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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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