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Full Discussion: compare files in two directories and output changed files to third directory
Top Forums Shell Programming and Scripting compare files in two directories and output changed files to third directory Post 302319979 by bkeep on Tuesday 26th of May 2009 06:10:11 PM
Old 05-26-2009
compare files in two directories and output changed files to third directory
I have searched about 30 threads, a load of Google pages and cannot find what I am looking for. I have some of the parts but not the whole. I cannot seem to get the puzzle fit together.

I have three folders, two of which contain different versions of multiple files, dist/file1.php dist/file2.php etc and dist_old/file1.php dist_old/file2.php etc.

The third folder contains only the changed files between the two. If /dist/file1.php differs from /dist_old/file1.php then a file named dist_upgrade/file1.php exists with the same contents as dist/file1.php.

Currently I am manually coping the different files using winmerge and I would like to automate some of this if possible.

What I would like to do is compare the dist folder with the dist_old folder then have files that are not the same copied to dist_upgrade/file.ext retaining the directory structure and full contents of the new file in the dist folder.

Thanks for any advice,
Best Regards,
Brandon
 

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LEARN ABOUT CENTOS

lzcmp

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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