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Full Discussion: searching for a pattern in a file and forwarding result to another
Top Forums UNIX for Advanced & Expert Users searching for a pattern in a file and forwarding result to another Post 302103902 by matrixmadhan on Monday 22nd of January 2007 08:23:59 AM
Old 01-22-2007
Code:
#! /opt/third-party/bin//perl

open(FILE, "<$ARGV[0]") || die "Unable to open file $ARGV[0] <$!> \n";
open(OUTPUTFILE, ">$ARGV[1]") || die "Unable to open file $ARGV[1] <$!> \n";

my ($searchword, $content, $lines, $set);

$searchword = $ARGV[2];
$set = 0;
while( chomp($content = <FILE>) ) {
  if( $content =~ m/$searchword/ ) {
    $set = 1;
    print OUTPUTFILE $content;
    print OUTPUTFILE "\n";
  }
  if ( $lines > 30 ) {
    last;
  }
  if( $set == 1 ) {
    $lines++;
  }
}

close(FILE);
close(OUTPUTFILE);

exit 0

 

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LEARN ABOUT DEBIAN

rapt-file

RAPT-FILE(1)															      RAPT-FILE(1)

NAME

       rapt-file - APT package searching utility -- search remotely

SYNOPSIS

       rapt-file [ options ] [ action ] [ pattern ]

DESCRIPTION

       rapt-file  is  a command line tool for searching files in packages for the APT package management system.  It differs from apt-file in that
       it works with remote package indices, so it doesn't need to download full Contents files.

       find   Alias for search.

       list   List the contents of a package matching the pattern pattern. This action is very close to the dpkg -L  command  except  the  package
	      does not need to be installed or fetched.

       search Search in which package a file is included. A list of all packages containing the pattern pattern is returned.

	      rapt-file will only search for filenames, not directory names.  This is due to the format of the Contents files it searches.

       show   Alias for list.

OPTIONS

	  -a, --architecture architecture
	      Sets architecture to architecture. This option is useful if you search a package for a different architecture from the one installed
	      on your system.  It determines how the $ARCH variable in sources.list is expanded (but it does not influence the search in any other
	      way).

	  -l, --package-only
	      Only display package name; do not display file names.

	  -v, --verbose
	      Run rapt-file in verbose mode.

	  -h, --help
	      Display a short help screen.

FILES

       /etc/apt/sources.list
	      Locations to fetch package contents from.

       /etc/apt/sources.list.d/
	      Directory with additional sources.list snippets

AUTHOR

       rapt-file was written by Enrico Zini <enrico@debian.org>.

								     May 2012							      RAPT-FILE(1)
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