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Top Forums Shell Programming and Scripting Retrieving the relevant search from search file in the main file Post 302911411 by csim_mohan on Thursday 31st of July 2014 01:37:16 PM
Old 07-31-2014
Retrieving the relevant search from search file in the main file

I have two files:
file 1:

Code:
hello.com    neo.com,japan.com,example.com
news.net    xyz.com, telecom.net, highlands.net, software.com
example2.com    earth.net, abc.gov.uk

file 2:
Code:
neo.com
example.com
abc.gov.uk

file 2 are the search keys to search in file 1 if any of the search key is found in file 1 it should return the row with the found search key else just the row of the file 1 like this:

Code:
hello.com    neo.com, example.com
news.net
example2.com    abc.gov.uk

I tried this:
Code:
awk 'NR==FNR{a[NR]=$0;next}      {l=$1;for(x in a)if($0~a[x]){l=$0;break}print l}' file2 file1

it gave me the result like this:
Code:
hello.com   neo.com,japan.com,example.com 
news.net 
example2.com    earth.net, abc.gov.uk

Any idea to fix this since ? file 1 is very huge like 2 GB what can be efficient way to write this ?
 

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PAPS(1) 						      General Commands Manual							   PAPS(1)

NAME
paps - UTF-8 to PostScript converter using Pango SYNOPSIS
paps [options] files... DESCRIPTION
paps reads a UTF-8 encoded file and generates a PostScript language rendering of the file. The rendering is done by creating outline curves through the pango ft2 backend. OPTIONS
These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below. --landscape Landscape output. Default is portrait. --columns=cl Number of columns output. Default is 1. --font=desc Set the font description. Default is Monospace 12. --rtl Do rtl layout. --paper ps Choose paper size. Known paper sizes are legal, letter, a4. Default is A4. --bottom-margin=bm Set bottom margin in postscript points (1/72 inch). Default is 36. --top-margin=tm Set top margin. Default is 36. --left-margin=lm Set left margin. Default is 36. --right-margin=rm Set right margin. Default is 36. --help Show summary of options. --header Draw page header for each page. --markup Interpret the text as pango markup. --encoding=ENCODING Assume the documentation encoding is ENCODING. --lpi Set the lines per inch. This determines the line spacing. --cpi Set the characters per inch. This is an alternative method of specifying the font size. --stretch-chars Indicates that characters should be stretched in the y-direction to fill up their vertical space. This is similar to the texttops behaviour. AUTHOR
paps was written by Dov Grobgeld <dov.grobgeld@gmail.com>. This manual page was written by Lior Kaplan <kaplan@debian.org>, for the Debian project (but may be used by others). April 17, 2006 PAPS(1)
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