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Full Discussion: Compare files with fields separated with semicolon
Top Forums Shell Programming and Scripting Compare files with fields separated with semicolon Post 302539349 by neutronscott on Saturday 16th of July 2011 11:37:57 PM
Old 07-17-2011
It sure would! Your input is rather vague.

Code:
awk 'NR==FNR { a[$0]++; next }
($0 in a) { do stuff }'

This puts first1 into an array, then looks for each line of file2 inside of the array.. I am not sure what columns you mean to compare. All of them, it sounds like, individually?? And is that first column the one that should be used to actually compare data between the two files? Like, compare the numbers for ABD in file1 only to the numbers for ABD in file2? ...

Edit: Best way to show us is a small file1 and file2 example, with desired output.
 

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LEARN ABOUT CENTOS

xzcmp

XZDIFF(1)							     XZ Utils								 XZDIFF(1)

NAME

       xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files

SYNOPSIS

       xzcmp [cmp_options] file1 [file2]
       xzdiff [diff_options] file1 [file2]
       lzcmp [cmp_options] file1 [file2]
       lzdiff [diff_options] file1 [file2]

DESCRIPTION

       xzcmp  and  xzdiff  invoke cmp(1) or diff(1) on files compressed with xz(1), lzma(1), gzip(1), bzip2(1), or lzop(1).  All options specified
       are passed directly to cmp(1) or diff(1).  If only one file is specified, then the files compared are file1 (which must have a suffix of  a
       supported  compression format) and file1 from which the compression format suffix has been stripped.  If two files are specified, then they
       are uncompressed if necessary and fed to cmp(1) or diff(1).  The exit status from cmp(1) or diff(1) is preserved.

       The names lzcmp and lzdiff are provided for backward compatibility with LZMA Utils.

SEE ALSO

       cmp(1), diff(1), xz(1), gzip(1), bzip2(1), lzop(1), zdiff(1)

BUGS

       Messages from the cmp(1) or diff(1) programs refer to temporary filenames instead of those specified.

Tukaani 							    2011-03-19								 XZDIFF(1)
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