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Full Discussion: Help with diff command
Top Forums UNIX for Dummies Questions & Answers Help with diff command Post 302895489 by John K on Tuesday 1st of April 2014 04:27:26 AM
Old 04-01-2014
Help with diff command
Platform :Oracle Linux 6.4
Shell : bash

In the below sample, although the lines in a.txt and b.txt are jumbled up, there is only one difference : b.txt has an extra line NETHERLANDS

Code:
$ cat a.txt
SPAIN
NORTH KOREA
PORTUGAL
GERMANY
SYRIA
$
$
$ cat b.txt
GERMANY
NORTH KOREA
SPAIN
PORTUGAL
SYRIA
NETHERLANDS
$
$
$ diff a.txt b.txt
1c1
< SPAIN
---
> GERMANY
2a3
> SPAIN
4d4
< GERMANY
5a6
> NETHERLANDS
$

I have two requirements

1. Ignore the difference in the order in which the lines appear. ie. In the above example, ignore the difference
of order of lines and consider only the line NETHERLANDS (the extra line) as the sole difference.

2. If there is a difference between a.txt and b.txt , just print the message 'a.txt and b.txt are different'
If there is no difference between a.txt and b.txt then print 'a.txt and b.txt are same

How can I do the above ?
 

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LEARN ABOUT CENTOS

gensprep

gensprep(8)							 ICU 50.1.2 Manual						       gensprep(8)

NAME

       gensprep - compile StringPrep data from files filtered by filterRFC3454.pl

SYNOPSIS

       gensprep [ -h, -?, --help ] [ -v, --verbose ] [ -c, --copyright ] [ -s, --sourcedir source ] [ -d, --destdir destination ]

DESCRIPTION

       gensprep reads filtered RFC 3454 files and compiles their information into a binary form.  The resulting file, <name>.icu, can then be read
       directly by ICU, or used by pkgdata(8) for incorporation into a larger archive or library.

       The files read by gensprep are described in the FILES section.

OPTIONS

       -h, -?, --help
	      Print help about usage and exit.

       -v, --verbose
	      Display extra informative messages during execution.

       -c, --copyright
	      Include a copyright notice into the binary data.

       -s, --sourcedir source
	      Set the source directory to source.  The default source directory is specified by the environment variable ICU_DATA.

       -d, --destdir destination
	      Set the destination directory to destination.  The default destination directory is specified by the environment variable ICU_DATA.

ENVIRONMENT

       ICU_DATA  Specifies the directory containing ICU data. Defaults to /usr/share/icu/50.1.2/.  Some tools in ICU depend on the presence of the
		 trailing slash. It is thus important to make sure that it is present if ICU_DATA is set.

FILES

       The  following files are read by gensprep and are looked for in the source /misc for rfc3454_*.txt files and in source /unidata for Normal-
       izationCorrections.txt.

       rfc3453_A_1.txt	   Contains the list of unassigned codepoints in Unicode version 3.2.0....

       rfc3454_B_1.txt	   Contains the list of code points that are commonly mapped to nothing....

       rfc3454_B_2.txt	   Contains the list of mappings for casefolding of  code points when Normalization form NFKC is specified....

       rfc3454_C_X.txt	   Contains the list of code points that are prohibited for IDNA.

       NormalizationCorrections.txt
			   Contains the list of code points whose normalization has changed since Unicode Version 3.2.0.

VERSION

       50.1.2

COPYRIGHT

       Copyright (C) 2000-2002 IBM, Inc. and others.

SEE ALSO

       pkgdata(8)

ICU MANPAGE
							   18 March 2003						       gensprep(8)
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