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Top Forums Shell Programming and Scripting Detect differences in two files Post 302435344 by pxy2d1 on Wednesday 7th of July 2010 05:47:50 AM
Old 07-07-2010
Detect differences in two files

All,

I have two csv files, the format of which are exactly the same.

I would like to find differences between the two files but would like to identify the difference as opposed to just printing a different line.

For exmaple

File 1
Code:
xxx,yyy,zzz,1,2,3
111,222,333,xxx,yyy

File2
Code:
xxx,yyy,zzz,8,2,4
999,222,333,xxx,zzz

I would like a script which identifies and logs that fields 4 and 6 are different in line 1 and fields 1 and 5 are different in line two.

I was thinking of an awk script, can awk process two files and if so how are fields in each file referenced.

Thanks for your help
 

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sccsdiff(1)						      General Commands Manual						       sccsdiff(1)

Name
       sccsdiff - compare and display SCCS delta differences

Syntax
       sccsdiff -rSID1 -rSID2 [-p] [-sn] files

Description
       The  command  compares  two versions of an SCCS file and generates the differences between the two versions.  You can specify any number of
       SCCS files, but arguments apply to all files.

Options
       -p	 Displays output using command.

       -rSID?	 Indicates deltas to be prepared.  Versions are passed to in the order given.

       -sn	 Sets number of lines each segment is to contain.  This is useful when fails due to a high system load.

Diagnostics
       ``file: No differences''
       If the two versions are the same.  Use for explanations.

Files
       temporary files

See Also
       bdiff(1), cmp(1), comm(1), diff(1), diff3(1), diffmk(1), get(1), prs(1), sccs(1), sccshelp(1)
       Guide to the Source Code Control System

																       sccsdiff(1)
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