Searching Text for Multiple Matches

I am using ruby to search and match text in a file that has several
mathes.

Here is the text:

Ethernet adapter Local Area Connection:

    Connection-specific DNS Suffix  . : corp.pc.com
    IP Address. . . . . . . . . . . . : 172.1.81.7
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . : 172.1.81.254

Ethernet adapter Network Connect Adapter:

    Media State . . . . . . . . . . . : Media disconnected

Ethernet adapter Wireless Network Connection:

    Connection-specific DNS Suffix  . : corp.pc.com
    IP Address. . . . . . . . . . . . : 172.1.17.116
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . : 172.1.17.254

What I need to do it pull out the IP address and default gateway IP
addresses for each interface and store them for processing later on in
the script.

What method should I use to get the first ip address and gateway and
store it, then grab the next set and store that?

thanks

What method should I use to get the first ip address and gateway and
store it, then grab the next set and store that?

I’d probably recommend a regular expression.
something like
a = big_string
big_string =~ /something/

or

big_string.scan(/something/).each {|match|

}

Thanks Roger. I am currently iterating through each line of text and
matching on any lines that either have “IP Address” or “Default Gateway”
in them and grabbing the IP addresses and assigning them to variables.

The problem is, the first IP address I get seems to disapear toward the
end of the script and I can’t figure out why…perhaps because I’m
using “elsif”?

here is the code:

ipconf = ipconfig

ipconf.each do |x|

 if
 x[/IP\sAdd*/]
 x.scan(/\s*IP\sAddress.*\:\s([1-9]+\.[0-9]+\.[0-9]+\.[0-9]+)\s+$/)
 ip = $1
 puts "ip addr: " + $1.to_s   ## THIS PRINTS OUT FINE


 elsif
 x[/Def*/]
 puts "XXXXX IP: #{ip}"
 x.scan(/\s*Default\sGateway.*\:\s([1-9]+\.[0-9]+\.[0-9]+\.[0-9]+)\s+$/)
 def_gate = $1
 puts "Default Gateway: "+$1.to_s   ## THIS PRINTS OUT FINE


 puts "Print IP address again: #{ip_addr}"  ### THIS HAS NO VALUE

end
end

I think I need to somehow combine the “if” and “elsif” statements so I’m
not using “or” and this way the ip_addr variable will hold it’s value?

thanks

jack

2009/11/30 jackster the jackle [email protected]:

ipconf = ipconfig
elsif
end

I think I need to somehow combine the “if” and “elsif” statements so I’m
not using “or” and this way the ip_addr variable will hold it’s value?

I would attempt a two stage approach:

  1. stage: match a complete adapter description
  2. stage: match individual portions of it

str = <<‘XXX’
Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . : corp.pc.com
   IP Address. . . . . . . . . . . . : 172.1.81.7
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 172.1.81.254

Ethernet adapter Network Connect Adapter:

   Media State . . . . . . . . . . . : Media disconnected

Ethernet adapter Wireless Network Connection:

   Connection-specific DNS Suffix  . : corp.pc.com
   IP Address. . . . . . . . . . . . : 172.1.17.116
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 172.1.17.254

XXX

str.scan %r{
^ \S [^:]* : \s* $
(?:
^ \s+ [^:]+ : [^:]+ $ [\n\r]+
)*
}x do |adapter|

p adapter

name = adapter[%r{Ethernet\s+adapter\s+(\S[^:]):}, 1]
addr = adapter[%r{IP Address[^:]
:\s*(\d+(?:.\d+){3})}, 1]
printf “%p %p\n”, name, addr
end

Kind regards

robert