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Full Discussion: join two files
Top Forums Shell Programming and Scripting join two files Post 302203886 by patelamit009 on Tuesday 10th of June 2008 06:01:35 AM
Old 06-10-2008
awk -F"|" 'NR==FNR {a[$1]=$2} NR!=FNR {print $0,"|",a[$1]}' f2 f1

Explanation:
------------

1) NR=FNR checks for the first file and stores the value of the second column from file "f2" in an array.
a[xx yy]=aaa
a[xx1 yy1]=bbb
a[xx2 yy2]=cccc

2) NR!=FNR checks for the second file and prints all the rows from second file along with the value of the column.

I hope this will be helpful.

Amit
 

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LEARN ABOUT DEBIAN

cccc

CCCC(1) 						      General Commands Manual							   CCCC(1)

NAME

       cccc - C and C++ Code Counter, a software metrics tool

SYNOPSIS

       cccc [options] file1.c ...

DESCRIPTION

       CCCC  analyses  and reports measurements of source code in C, C++, and Java.  It was developed to augment programmers' instinctive applica-
       tion of numeric rules of thumb about what constitutes high or low quality products with an automated analysis tool.

       CCCC processes the files listed on its command line.  If the filenames include '-', read a list of files from standard input.

       This program is work in progress and is not well documented.  Please be prepared to refer to the  source  code  for  the  meaning  of  some
       options.

OPTIONS

       --help Generate this help message.

       --outdir=dname
	      Directory for generated files (default=.cccc).

       --html_outfile=fname
	      Name of primary HTML report generated (default=outdir/cccc.html).

       --db_infile=fname
	      Preload internal database from named file (default=no initial content).

       --db_outfile=fname
	      Save internal database to named file (default=outdir/cccc.db).

       --opt_infile=fname
	      Load options from named file (default=use compiled-in option values, refer to cccc_opt.cc for option information).

       --opt_outfile=fname
	      Save options to named file (default=outdir/cccc.opt).

       --lang=string
	      Use  language  specified	for  files  specified  after this option.  Languages supported are c, c++, ada, and java (default=use lan-
	      guage/extension mapping controlled by options).

       --report_mask=hex
	      Control report content (refer to ccccmain.cc for mask values).

       --debug_mask=hex
	      Control debug output content (refer to ccccmain.cc for mask values).

AUTHOR

       CCCC was written by Tim Littlefair <tim_littlefair@hotmail.com>.

       This manual page was written by Colin Watson <cjwatson@debian.org> for the Debian system (but may be used by others).

																	   CCCC(1)
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