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Full Discussion: comparing two files for matching fields
Top Forums Shell Programming and Scripting comparing two files for matching fields Post 302599324 by gameli on Thursday 16th of February 2012 07:13:32 PM
Old 02-16-2012
comparing two files for matching fields
I am newbie to unix and would please like some help to solve the task below
I have two files, file_a.text and file_b.text that I want to evaluate.
file_a.text
Code:
   1698.74       
1711.88 
      6576.25       
899.41       
3205.63       
4187.98       
697.35 
      1551.83

file_b.text
Code:
         1698.73
1711.08 
      6576.25
899.31 
      3205.53
4187.68       
697.35 
      1551.73


Task
I want to compare file_a.text to file_b.text and print out fields where the variables in file_a.text matched to the variables in file_b.text with an error window of 0.5.

thus if file a variables = X, i want to print fileds where file_b variables = X ± 0.5
Thanks
Last edited by Don Cragun; 01-24-2019 at 04:50 PM..
 

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LEARN ABOUT CENTOS

lzless

XZLESS(1)							     XZ Utils								 XZLESS(1)

NAME

       xzless, lzless - view xz or lzma compressed (text) files

SYNOPSIS

       xzless [file...]
       lzless [file...]

DESCRIPTION

       xzless  is  a  filter  that  displays text from compressed files to a terminal.	It works on files compressed with xz(1) or lzma(1).  If no
       files are given, xzless reads from standard input.

       xzless uses less(1) to present its output.  Unlike xzmore, its choice of pager cannot be altered by setting an environment variable.   Com-
       mands are based on both more(1) and vi(1) and allow back and forth movement and searching.  See the less(1) manual for more information.

       The command named lzless is provided for backward compatibility with LZMA Utils.

ENVIRONMENT

       LESSMETACHARS
	      A list of characters special to the shell.  Set by xzless unless it is already set in the environment.

       LESSOPEN
	      Set to a command line to invoke the xz(1) decompressor for preprocessing the input files to less(1).

SEE ALSO

       less(1), xz(1), xzmore(1), zless(1)

Tukaani 							    2010-09-27								 XZLESS(1)
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