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Full Discussion: Format diff output
Top Forums Shell Programming and Scripting Format diff output Post 302409523 by blackjack101 on Thursday 1st of April 2010 11:28:16 AM
Old 04-01-2010
Format diff output
I need to compare two directories with tab separated files. I'm using diff to do this. diff output doesn't identify which column values are different, it just tells which lines are different. Is there any way to format diff output. Thanks

Code:
f1.txt
210	998877	phone	9981128209	add	111 nw st.
310	998877	usg	650	ex	11
310	998877	usg	850	ex	11
410	998877	web	1003		
210	998878	phone	9981128210	add	112 nw st.
310	998878	usg	750	ex	11
410	998878	web	930		
	

f2.txt
210	998877	phone	9981128209	add	111 nw st.
310	998877	usg	650	ex	11.00
310	998877	usg	750	ex	11
410	998877	web	1203		
210	998878	phone	9981128210	add	112 nw st.
310	998878	usg	750	ex	11
410	998878	web	850		

diff output -
 
 diff -b f1.txt f2.txt

2,4c2,4
< 310   998877  usg     650     ex      11
< 310   998877  usg     850     ex      11
< 410   998877  web     1003
---
> 310   998877  usg     650     ex      11.00
> 310   998877  usg     750     ex      11
> 410   998877  web     1203
7c7
< 410   998878  web     930
---
> 410   998878  web     850

I want to reformat -

310 998877 column6 11 11.00
310 998877 column4 850 750
410 998877 column4 1003 1203
410 998878 column4 930 850

 

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LEARN ABOUT CENTOS

sane-ibm

sane-ibm(5)						   SANE Scanner Access Now Easy 					       sane-ibm(5)

NAME

       sane-ibm - SANE backend for IBM and Ricoh SCSI flatbed scanners

DESCRIPTION

       The sane-ibm library implements a SANE (Scanner Access Now Easy) backend that provides access to the IBM 2456 and the Ricoh IS-410, IS-420,
       and IS-430 flatbed scanners. Support for the IS-410 and IS-430 is untested. Please contact the maintainer or the sane-devel mailing list if
       you own such a scanner.

       This  backend  is alpha-quality. It may have bugs and some scanners haven't been tested at all. Be careful and pull the plug if the scanner
       causes unusual noise.

DEVICE NAMES

       This backend expects device names of the form:

	      special

       Where special is either the path-name for the special device that corresponds to a SCSI scanner. The  program  sane-find-scanner  helps	to
       find out the correct device. Under Linux, such a device name could be /dev/sg0 or /dev/sga, for example.  See sane-scsi(5) for details.

CONFIGURATION

       The  contents  of the ibm.conf file is a list of device names that correspond to SCSI scanners.	Empty lines and lines starting with a hash
       mark (#) are ignored.  See sane-scsi(5) on details of what constitutes a valid device name.

FILES

       /etc/sane.d/ibm.conf
	      The backend configuration file (see also description of SANE_CONFIG_DIR below).

       /usr/lib64/sane/libsane-ibm.a
	      The static library implementing this backend.

       /usr/lib64/sane/libsane-ibm.so
	      The shared library implementing this backend (present on systems that support dynamic loading).

ENVIRONMENT

       SANE_CONFIG_DIR
	      This environment variable specifies the list of directories that may contain the configuration file.  Under  UNIX,  the  directories
	      are  separated  by a colon (`:'), under OS/2, they are separated by a semi-colon (`;').  If this variable is not set, the configura-
	      tion file is searched in two default directories: first, the current working directory (".") and then in /etc/sane.d.  If the  value
	      of the environment variable ends with the directory separator character, then the default directories are searched after the explic-
	      itly specified directories.  For example, setting SANE_CONFIG_DIR to "/tmp/config:" would result in directories  "tmp/config",  ".",
	      and "/etc/sane.d" being searched (in this order).

       SANE_DEBUG_IBM
	      If the library was compiled with debug support enabled, this environment variable controls the debug level for this backend.  Higher
	      debug levels increase the verbosity of the output.

SEE ALSO

       sane(7), sane-find-scanner(1), sane-scsi(5),

AUTHOR

       mf <massifr@tiscalinet.it>
       Maintained by Henning Meier-Geinitz <henning@meier-geinitz.de>

								    13 Jul 2008 						       sane-ibm(5)
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