awk/grep type question Post: 302379867

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Top Forums Shell Programming and Scripting awk/grep type question Post 302379867 by hcclnoodles on Saturday 12th of December 2009 07:39:34 PM

12-12-2009

Registered User

awk/grep type question

Hi there, I have a Solaris machine with an ifconfig output similar to below

Code:

lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
        inet 127.0.0.1 netmask ff000000 
e1000g0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
        inet 10.0.0.1 netmask ffff0000 broadcast 10.0.255.255
        ether 0:14:4f:1f:xx:xx 
e1000g0:1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
        inet 10.0.0.2 netmask ffff0000 broadcast 10.0.255.255
e1000g0:2: flags=201000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4,CoS> mtu 1500 index 2
        zone virtual-server67
        inet 10.0.0.3 netmask ffff0000 broadcast 10.0.255.255
e1000g0:3: flags=201000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4,CoS> mtu 1500 index 2
        zone virtual-server68
        inet 10.0.0.4 netmask ffff0000 broadcast 10.0.255.255

As you can see I have one physical interface called e1000g0 and three subsequent virtual interfaces on e1000g0. The first one is just a regular secondary virtual interface, but the second and third are attached to Solaris Zones (virtual servers) and subsequently have an extra line in the output defining the zone it is attahced to (in red above). I have to write a process that will cycle through theses 4 interfaces (in this case 1 physical and 3 virtual) populating a variable, lets call it VAR, with the virtual server name found on the lines highlighted in red above (additional example below)

Code:

zone virtual-server68

But where there is no "zone <virtualserver name>" line for an interface, be it Physical or Virtual (as with e1000g0 and e1000g0:1) I want to just poulate VAR with a "-"

My question is really, whilst I am happy using awk to set VAR with the value of that line if it existed on ALL interfaces, I am a little unsure as to how I use it to make the determination of whether the line exists for a interface then either grab the value or set it to "-" accordingly ?

would i need to use a mixture of tools to achieve this or can it all be done within awk?

any help on this would be greatly appreciated

hcclnoodles

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LEARN ABOUT OSF1

ppmtosixel

ppmtosixel(1)						      General Commands Manual						     ppmtosixel(1)

NAME

       ppmtosixel - convert a portable pixmap into DEC sixel format

SYNOPSIS

       ppmtosixel [-raw] [-margin] [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as input.  Produces sixel commands (SIX) as output.	The output is formatted for color printing, e.g. for a DEC
       LJ250 color inkjet printer.

       If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled.  A printer control header and a color assignment table
       begin the SIX file.  Image data is written in a compressed format by default.  A printer control footer ends the image file.

OPTIONS

       -raw   If  specified,  each  pixel  will  be explicitly described in the image file.  If -raw is not specified, output will default to com-
	      pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands.  A raw file is often an order	of  magni-
	      tude larger than a compressed file and prints much slower.

       -margin
	      If  -margin  is not specified, the image will be start at the left margin (of the window, paper, or whatever).  If -margin is speci-
	      fied, a 1.5 inch left margin will offset the image.

PRINTING

       Generally, sixel files must reach the printer unfiltered.  Use the lpr -x option or cat filename > /dev/tty0?.

BUGS

       Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion.  If the original PPM maxval was
       greater	than  100,  rescaling  also reduces the image depth.  While the actual RGB values from the ppm file are more or less retained, the
       color palette of the LJ250 may not match the colors on your screen.  This seems to be a printer limitation.

SEE ALSO

       ppm(5)

AUTHOR

       Copyright (C) 1991 by Rick Vinci.

								   26 April 1991						     ppmtosixel(1)