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Top Forums Shell Programming and Scripting Search and compare files from two paths Post 302786555 by DGPickett on Wednesday 27th of March 2013 05:35:04 PM
Old 03-27-2013
Seems like deja vu. Compare the file lists of the two directories, and the file content, using something like this:
Code:
diff -U0 <(
  cd head1
  find * -type f | sort | xargs -r cksum ) <(
  cd head2
  find * -type f | sort | xargs -r cksum ) | while read  diff_ind  cksum  sz  path
do
 case "$diff_ind" in
 (-)
  echo "Deleted file '$path'."
  ;;
 (+)
  echo "New file '$path':"
  cat head2/$path
  ;;
 (*)
  echo "Changed file '$path':"
  sdiff head1/$path head2/$path
  ;;
 esac
done

For stricter delete/new checking, use 'comm' not 'diff -U0' but no '| xargs -r cksum' until later, when you know both are present (no tab prefix is delete, one tab is new, two tabs is both). You can report new/delete on stderr and pipe others to stdout to cksum to another while read to compare cksums before running an sdiff.

Last edited by DGPickett; 03-27-2013 at 06:41 PM..
 

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dircmp(1)						      General Commands Manual							 dircmp(1)

NAME
dircmp - Compares two directories SYNOPSIS
dircmp [-d] [-s] directory1 directory2 The dircmp command reads directory1 and directory2, compares their contents, and writes the results to standard output. STANDARDS
Interfaces documented on this reference page conform to industry standards as follows: dircmp: XCU5.0 Refer to the standards(5) reference page for more information about industry standards and associated tags. OPTIONS
Displays for each common file name the differing contents of the two files, if any. The display format is the same as that of the diff command. Does not list the names of identical files. OPERANDS
The path name of a directory to be compared. DESCRIPTION
First, dircmp compares the file names in each directory. When the same file name appears in both, dircmp compares the contents of the two files. In the output, dircmp lists the files unique to each directory. It then lists the files with identical names but different contents. If entered without a option, dircmp also lists files that have both identical names and identical contents. NOTES
[Tru64 UNIX] In many cases, diff -r, rather than dircmp, is preferred. The dircmp command is marked LEGACY. The diff -r command should be used instead. EXAMPLES
To summarize the differences between the files in two directories, enter: dircmp proj.ver1 proj.ver2 This displays a summary of the differences between the directories proj.ver1 and proj.ver2. The summary lists separately the files found only in one directory or the other, and those found in both. If the file is found in both directories, the file is listed. If the files are identical, dircmp displays identical; otherwise, dircmp displays different. To show the details of the differences between files, enter: dircmp -d -s proj.ver1 proj.ver2 The -s option suppresses information about identical files. The -d option displays a diff listing for each of the differing files found in both directories. SEE ALSO
Commands: cmp(1), diff(1) Standards: standards(5) dircmp(1)
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