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Full Discussion: How to use SED or AWK to search and replace an exact string
Top Forums Shell Programming and Scripting How to use SED or AWK to search and replace an exact string Post 302534851 by itkamaraj on Wednesday 29th of June 2011 02:34:44 AM
Old 06-29-2011
sample:

Code:
 
$sed 's/^DS$/abc/' test
DS1
DDS
abc

 

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LEARN ABOUT OSF1

named.star

named.star(4)						     Kernel Interfaces Manual						     named.star(4)

NAME

       named.star - Defines data used by named to initialize the BIND (Berkeley Internet Name Domain) name server file

SYNOPSIS

       /etc/namedb/named.*

DESCRIPTION

       The  data  files  referenced in the named.conf file can have any names, but they are generally given names of the form /etc/namedb/named.*.
       This naming convention is used for convenience in maintaining the named daemon's file.

       The records in the named data files are called resource records. Except for comments (starting with a ; (semicolon) and continuing  to  the
       end  of the line), the resource records in the data files generally follow the format of the resource records that the named daemon returns
       in response to queries from resolver routines.

       The named.conf file is the default configuration (or boot) file for the named server.  The named daemon reads the start-up  file  when  the
       named daemon starts and when receiving the signal SIGHUP.

EXAMPLES

       The following examples portray two domains on two different networks: Domain abc.aus.osf.com, Internet address 192.9.201.n

       (where n varies for each system on the network)

       Domain xyz.aus.osf.com, Internet address 128.114.100.n

       (where n varies for each system on the network)

	      In  this	sample	configuration, both the primary and the secondary name servers are in the abc.aus.osf.com domain, and host hera is
	      the gateway host.  The following are sample entries in a named.ca file: ; root name servers.
		       1	  IN	NS    relay.osf.com.  relay.osf.com.   3600000	  IN	A     129.114.1.2 The following two files are sam-
	      ple entries from the named.data files for hosts venus and allen.	(The data files can have any name you choose, as long as that name
	      is defined in the named.boot file. In this case, the names are named.abcdata and named.xyzdata.)

	      The named file for host venus is in the following file, called named.abcdata: ;OWNER	   TTL	     CLASS TYPE      RDATA  ;local
	      domain server is venus @	 IN   SOA   venus   bob.robert.abc.aus.osf.com. (
					  1.1	  ;serial
					  3600	  ;refresh
					  600	  ;retry
					  3600000 ;expire
					  86400)  ;minimum
		  IN	NS   venus
		  IN	NS   kronos
		  IN	 MX    10	venus.abc.aus.osf.com.	 ; address for local loopback localhost 	 IN    A	127.1 ; address of
	      machines in the same domain venus 	     IN    A	    192.9.201.1  venus		     IN     A	      128.114.100.1  venus
	      IN    MX	     10   venus.abc.aus.osf.com.  veabc 	     IN    CNAME    venus
				 IN    WKS	192.9.201.1 udp (tftp
						nameserver domain)
				 IN    WKS	192.9.201.1 tcp (echo telnet
						smtp discard uucp-path systat
						daytime netstat chargen ftp
						time whois finger hostnames
						domain)  ;  delimiter  for WKS kronos		  IN	A	 192.9.201.2 krabc		IN
	      CNAME    kronos hera		 IN    A	192.9.201.5
				 IN	A	  128.114.100.5  robert 	     IN     A	      192.9.201.6   ernie		 IN	 A
	      192.9.201.7
				 IN    HINFO	HP-800 OS1 robert.abc.aus.osf.com. IN	 MX 10	  venus.abc.aus.osf.com.

	      The  named  file for host allen is in the following file, called named.xyzdata: ;OWNER	     TTL       CLASS TYPE     RDATA ;local
	      domain server is venus xyz.aus.osf.com.  IN   SOA   venus.abc.aus.osf.com.  bob.robe rt.abc.aus.osf.com. (
					  1.1	  ;serial
					  3600	  ;refresh
					  600	  ;retry
					  3600000 ;expire
					  86400)  ;minimum xyz.aus.osf.com.  IN   NS   venus.abc.aus.osf.com.
				IN   NS   kronos.abc.aus.osf.com.
				IN   MX   10	  venus.abc.aus.osf.com.  ; address for local loopback localhost	 IN	A	  127.1  ;
	      address  of  machines  in  the  same  domain  allen	       IN     A 	128.114.100.3  allen		 IN    MX	10
	      venus.abc.aus.osf.com.  alxyz		IN    CNAME    allen
				IN    WKS      128.114.100.3 udp (tftp
					       nameserver domain)
				IN    WKS      128.114.100.3 tcp (echo telnet
					       smtp discard uucp-path systat
					       daytime netstat chargen ftp
					       time whois finger hostnames
					       domain) ; delimiter for WKS fred 	     IN    A	     128.114.100.10  mike		IN
	      A        128.114.100.11
				IN     HINFO	 HP-800 OS1 The following is a sample named.local file that might appear on hosts in either of the
	      sample domains: @   IN   SOA   venus.abc.aus.osf.com. gail.zeus.abc.aus.osf.com.	(
					 1.1	 ;serial
					 3600	 ;refresh
					 600	 ;retry
					 3600000 ;expire
					 86400)  ;minimum
		     IN    NS	  venus.abc.aus.osf.com.  1	 IN    PTR    localhost.  The following two files  are	sample	entries  from  the
	      named.rev files for hosts venus and allen.  For this example, the files are called named.abcrev and named.xyzrev.

	      The   reverse  file  for	host  venus  is  in  the  following  file,  called  named.abcrev:  @   IN    SOA    venus.abc.aus.osf.com.
	      bob.robert.abc.aus.osf.com.  (
					 1.1	 ;serial
					 3600	 ;refresh
					 600	 ;retry
					 3600000 ;expire
					 86400)  ;minimum 9.201.192.in-addr.arpa.   IN	  NS	 venus.abc.aus.osf.com.
					IN    NS     kronos.abc.aus.osf.com.
					IN     PTR     hera.abc.aus.osf.com.	;ABC.AUS.OSF.COM   Hosts   1.201.9.192.in-addr.arpa.   IN      PTR
	      venus.abc.aus.osf.com.	2.201.9.192.in-addr.arpa.   IN	   PTR	   kronos.abc.aus.osf.com.   5.201.9.192.in-addr.arpa.	IN     PTR
	      hera.abc.aus.osf.com.   6.201.9.192.in-addr.arpa.  IN	PTR	robert.abc.aus.osf.com.    7.201.9.192.in-addr.arpa.   IN      PTR
	      ernie.abc.aus.osf.com.

	      The   reverse  file  for	host  allen  is  in  the  following  file,  called  named.xyzrev:  @   IN    SOA    venus.abc.aus.osf.com.
	      bob.robert.abc.aus.osf.com.  (
					 1.1	 ;serial
					 3600	 ;refresh
					 600	 ;retry
					 3600000 ;expire
					 86400)  ;minimum 100.114.128.in-addr.arpa.   IN    NS	   venus.abc.aus.osf.com.
					  IN	NS     kronos.abc.aus.osf.com.
					  IN	 PTR	 hera.abc.aus.osf.com.	 ;XYZ.AUS.OSF.COM  Hosts  3.100.114.128.in-addr.arpa.  IN      PTR
	      allen.abc.aus.osf.com.   10.100.114.128.in-addr.arpa.  IN     PTR     fred.abc.aus.osf.com.   11.100.114.128.in-addr.arpa. IN    PTR
	      mike.abc.aus.osf.com.  ;ABC.AUS.OSF.COM Hosts 1.100.114.128.in-addr.arpa.  IN	PTR	venus.abc.aus.osf.com.	 5.100.114.128.in-
	      addr.arpa. IN    PTR    hera.abc.aus.osf.com.

RELATED INFORMATION

       Daemon: named(8).  delim off

																     named.star(4)
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