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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 DEBIAN

jifty::dbi::handle::oracle

Jifty::DBI::Handle::Oracle(3pm) 			User Contributed Perl Documentation			   Jifty::DBI::Handle::Oracle(3pm)

NAME

	 Jifty::DBI::Handle::Oracle - An oracle specific Handle object

SYNOPSIS

DESCRIPTION

       This module provides a subclass of Jifty::DBI::Handle that compensates for some of the idiosyncrasies of Oracle.

METHODS

   connect PARAMHASH: Driver, Database, Host, User, Password
       Takes a paramhash and connects to your DBI datasource.

   database_version
       Returns value of ORA_OCI constant, see "Constants" in DBD::Oracle.

   insert
       Takes a table name as the first argument and assumes that the rest of the arguments are an array of key-value pairs to be inserted.

   build_dsn PARAMHASH
       Takes a bunch of parameters:

       Required: Driver, Database or Host/SID, Optional: Port and RequireSSL

       Builds a dsn suitable for an Oracle DBI connection

   blob_params column_NAME column_type
       Returns a hash ref for the bind_param call to identify BLOB types used by the current database for a particular column type.  The current
       Oracle implementation only supports ORA_CLOB types(112).

   apply_limits STATEMENTREF ROWS_PER_PAGE FIRST_ROW
       takes an SQL SELECT statement and massages it to return ROWS_PER_PAGE starting with FIRST_ROW;

   distinct_query STATEMENTREF
       takes an incomplete SQL SELECT statement and massages it to return a DISTINCT result set.

AUTHOR

       Jesse Vincent, jesse@fsck.com

SEE ALSO

       Jifty::DBI, Jifty::DBI::Handle, DBD::Oracle

perl v5.14.2							    2011-04-26					   Jifty::DBI::Handle::Oracle(3pm)
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