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Top Forums Shell Programming and Scripting Find header in a text file and prepend it to all lines until another header is found Post 303036771 by Chubler_XL on Wednesday 10th of July 2019 11:04:55 PM
Old 07-11-2019
I'm guessing that all the appliance names do not start with the text "app".

A bit more of a generic approach might be to treat lines with only one field as an appliance name (assuming here that there are no spaces within the appliance name). The awk system variable NF contains the number of fields in the line so instead of /^app/ (line begins with app) to identify headers you could use NF == 1 (Number of fields on this line equals one) or even NF != 3 (Number of fields is not 3)
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File::Find::Rule::Procedural(3) 			User Contributed Perl Documentation			   File::Find::Rule::Procedural(3)

NAME
File::Find::Rule::Procedural - File::Find::Rule's procedural interface SYNOPSIS
use File::Find::Rule; # find all .pm files, procedurally my @files = find(file => name => '*.pm', in => @INC); DESCRIPTION
In addition to the regular object-oriented interface, File::Find::Rule provides two subroutines for you to use. "find( @clauses )" "rule( @clauses )" "find" and "rule" can be used to invoke any methods available to the OO version. "rule" is a synonym for "find" Passing more than one value to a clause is done with an anonymous array: my $finder = find( name => [ '*.mp3', '*.ogg' ] ); "find" and "rule" both return a File::Find::Rule instance, unless one of the arguments is "in", in which case it returns a list of things that match the rule. my @files = find( name => [ '*.mp3', '*.ogg' ], in => $ENV{HOME} ); Please note that "in" will be the last clause evaluated, and so this code will search for mp3s regardless of size. my @files = find( name => '*.mp3', in => $ENV{HOME}, size => '<2k' ); ^ | Clause processing stopped here ------/ It is also possible to invert a single rule by prefixing it with "!" like so: # large files that aren't videos my @files = find( file => '!name' => [ '*.avi', '*.mov' ], size => '>20M', in => $ENV{HOME} ); AUTHOR
Richard Clamp <richardc@unixbeard.net> COPYRIGHT
Copyright (C) 2003 Richard Clamp. All Rights Reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
File::Find::Rule perl v5.16.3 2011-09-19 File::Find::Rule::Procedural(3)
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