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Top Forums Shell Programming and Scripting Get multi-line sed not to run if regex is found Post 302978276 by RudiC on Thursday 28th of July 2016 12:18:27 PM
Old 07-28-2016
Not sure if I correctly understood your problem and its intricacies, but there seems to be quite simple a solution:
Code:
sed  "/^#/{p;d}; /address.*${RADIO}\$/ s/\$/\n\t_mac_address\t${ARPMAC}/ " file
#define host{
#        use             generic-host
#        host_name       Hostname before
#        alias           old device of some sort
#        address         192.168.10.140
#        parents         switch
#        hostgroups      radios
#        }

define host{
        use             generic-host
        host_name       Hostname
        alias           device of some sort
        address         192.168.10.140
	_mac_address	aa:bb:cc:11:22:33
        parents         switch
        hostgroups      radios
        }

This User Gave Thanks to RudiC For This Post:
 

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fixnt(1)							      Debian								  fixnt(1)

NAME
fixnt - Filter for the Windows NT postscript printer driver. SYNOPSIS
fixnt < BADFILE.ps > GOODFILE.ps DESCRIPTION
The Windows NT postscript driver has a tendency to make broken postscript files, that are incompatible with psutils. fixnt is a filter that fixes these problems, allowing the use of psnup(1). The filter takes the broken postscript file on stdin, and outputs a fixed postscript file on stdout. It has no other form for invocation and takes no options on the command-line. OPTIONS
fixnt takes no options. BUGS
fixnt does not check for NTPSOct94. For a workaround, use a sed(1) command to replace 'NTPSOct94' with 'NTPSOct95', like so: sed 's/NTPSOct94/NTPSOct95/g' This is particularly important for Windows NT 3.5 users. AUTHOR
fixnt was written by Holger Bauer <Holger.Bauer@topmail.de>, Michael Rath <rath@itsm.uni-stuttgart.de>, and Akim Demaille <demaille@inf.enst.fr>. REPORTING BUGS
Report bugs to the Authors, but avoid sending large postscript files. Patches are always welcome; send to <bauer@itsm.uni-stuttgart.de>. SEE ALSO
psnup(1), sed(1) a2ps February 2003 fixnt(1)
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