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Full Discussion: How do delete unwanted characters from lsof?
Special Forums IP Networking How do delete unwanted characters from lsof? Post 302507125 by grigorianvlad on Tuesday 22nd of March 2011 09:10:37 PM
Old 03-22-2011
How do delete unwanted characters from lsof?
Hi. I need to trace on Unix level number of connections to an Oracle database. The listener runs on port 1521.
The following is run:
Code:
oracle@server03 >lsof -Pni |grep ".1521" |grep IPv4 | awk {'print $5'}|cut -d: -f 1|sort|uniq -c|sort -nk 1
  87 IPv4
oracle@server03 >

I need to append these values into a text file every 5 mins through cron. That part works. The problem I am having is getting rid of the "IPv4" string. I just need number of connections and nothing else:

87
88
87

How do I change the statement so it only returns the numbers?
Thanks.
Last edited by vbe; 03-24-2011 at 05:54 AM.. Reason: Please use code tags
 

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LEARN ABOUT CENTOS

isnsd

ISNSD(8)						      System Manager's Manual							  ISNSD(8)

NAME

       isnsd - iSNS server daemon

SYNOPSIS

       isnsd [-f] [-4] [-6] [-c filename] [-d debug-facility] [--dump-db] [--init]

DESCRIPTION

       Isnsd implements the iSNS protocol as defined in RFC 4171.  iSNS is a discovery protocol for iSCSI and iFCP.

OPTIONS

       By  default,  isnsd  will  take	most of its settings from the configuration file /etc/isns/isnsd.conf, with the exception of the following
       options:

       --config filename, -c filename
	      This option overrides the default configuration file.

       --foreground,-f
	      By default, isnsd will put itself into the background. By specifying this option, you can tell it to  run  in  the  foreground.  Any
	      error messages or debug output will be printed to the console rather than being sent to syslog.

       -4     tells isnsd to create an IPv4 socket only. Normally, it defaults to IPv6 (which will accept both IPv4 and IPv6 connections).

       -6     tells isnsd explicitly to create an IPv6 socket only. Since it defaults to IPv6 anyway, this is really a no-op.

       --debug facility, -d facility
	      enables debugging. Valid facilities are

					     +--------+-----------------------------------------------------+
					     |socket  | network send/receive				    |
					     |auth    | authentication and security related information     |
					     |message | iSNS protocol layer				    |
					     |state   | database state					    |
					     |scn     | SCN (state change notification) messages	    |
					     |esi     | ESI (entity status inquiry) messages		    |
					     |all     | all of the above				    |
					     +--------+-----------------------------------------------------+
       --dump-db
	      This  is	a helper function that will read the database from the file system, and display it in human readable form. When using this
	      option, isnsd will not open any sockets, and terminate immediately after display the database.

	      This option is intended to be used by the administrator when suspecting that the database contains bad/inconsistent information.

       --init This option will create the server's authentication key, and the required DSA parameters. The private key  is  stored  in  the  file
	      specified  by the AuthKey option (usually /etc/isns/auth_key).  The public portion of the key is written to same directory, with the
	      suffix .pub appended to the key file name.

SEE ALSO

       RFC 4171, isnsadm(8), isnsdd(8), isns_config(5).

AUTHORS

       Olaf Kirch <olaf.kirch@oracle.com>

								    11 May 2007 							  ISNSD(8)
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