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Full Discussion: Need help regarding comparison between two files through UNIX script
Top Forums Shell Programming and Scripting Need help regarding comparison between two files through UNIX script Post 302948496 by RudiC on Tuesday 30th of June 2015 04:07:20 AM
Old 06-30-2015
Why not cast everything into awk? Try
Code:
awk -F\| '
BEGIN           {print "<<Analysis Report >>\n\nSrc & tgt Count Validation"}

                {for (i=1; i<=NF; i++) TMP[i]=$i
                 if (getline < FN == 1) {SCNT++
                                         for (i=1; i<=NF; i++)
                                                {if (TMP[i] != $i) MMArr[++MMCNT]= $1 "\t" i "\t" TMP[i] "\t" $i}
                                        }
                }
END             {while (getline < FN == 1) SCNT++
                 printf "Source Count : %d\nTarget Count : %d\n\nField lebel Src & Tgt Mismatches\nNo of Mismatches : %d\n\n", SCNT, NR, MMCNT
                 printf "Mismatch Details :\nKey Column Value\tColumn Name\tSource Data\tTarget Data\n"
                 for (i=1; i<=MMCNT; i++) print MMArr[i]
                }
' FN="file1" file2
<<Analysis Report >>

Src & tgt Count Validation
Source Count : 8
Target Count : 4

Field lebel Src & Tgt Mismatches
No of Mismatches : 4

Mismatch Details :
Key Column Value    Column Name    Source Data    Target Data
000101    6    123455     123456
000102    8    24    23
000103    2    000004         3
000104    6    3401       3400

Be aware that I added 4 lines to the source file to verify the algorithm...
This User Gave Thanks to RudiC For This Post:
STCET22
 

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LEARN ABOUT OPENDARWIN

source

source(n)						       Tcl Built-In Commands							 source(n)

__________________________________________________________________________________________________________________________________________________

NAME

       source - Evaluate a file or resource as a Tcl script

SYNOPSIS

       source fileName

       source -rsrc resourceName ?fileName?

       source -rsrcid resourceId ?fileName?
_________________________________________________________________

DESCRIPTION

       This  command takes the contents of the specified file or resource and passes it to the Tcl interpreter as a text script.  The return value
       from source is the return value of the last command executed in the script.  If an error occurs in evaluating the contents  of  the  script
       then  the source command will return that error.  If a return command is invoked from within the script then the remainder of the file will
       be skipped and the source command will return normally with the result from the return command.

       The end-of-file character for files is '32' (^Z) for all platforms.  The source command will  read  files  up  to  this  character.   This |
       restriction  does  not  exist for the read or gets commands, allowing for files containing code and data segments (scripted documents).	If |
       you require a ``^Z'' in code for string comparison, you can use ``32'' or ``u001a'', which will be safely substituted by the Tcl  inter- |
       preter into ``^Z''.

       The -rsrc and -rsrcid forms of this command are only available on Macintosh computers.  These versions of the command allow you to source a
       script from a TEXT resource.  You may specify what TEXT resource to source by either name or id.  By default Tcl searches all open resource
       files,  which  include  the  current  application  and any loaded C extensions.	Alternatively, you may specify the fileName where the TEXT
       resource can be found.

SEE ALSO

       file(n), cd(n)

KEYWORDS

       file, script

Tcl																	 source(n)
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