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Full Discussion: diff then awk two files
Top Forums UNIX for Dummies Questions & Answers diff then awk two files Post 302595220 by kokoro on Thursday 2nd of February 2012 12:02:50 PM
Old 02-02-2012
Quote:
Originally Posted by Corona688
I think your regex isn't working. You can make it a lot simpler.

Code:
$ diff file1.txt file2.txt  | awk '/^</ { printf("%-20s\n", $2) }'

It is still not working, the difflist.txt is still empty...

the output of the diff is in this format:
Code:
3a4
> 5

then awk will do the rest supposedly.

---------- Post updated at 12:02 PM ---------- Previous update was at 11:31 AM ----------

i was able to do it but not with a one liner command, i'll post the code for the benefit of other researchers Smilie

Code:
diff file1.txt file2.txt > difflist
grep '>' difflist | $AWK '{print $2}' > list.txt

 

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LEARN ABOUT SUSE

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

BUGS

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

Tukaani 							    2009-07-05								 XZDIFF(1)
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