[SLUG] bash script - add new line breaks to a text file

From: Mike Branda (mike@wackyworld.tv)
Date: Tue Nov 08 2005 - 13:06:19 EST


Hey all,

I have a problem here with a lot of duplicate files from multiple users.
Ran a program/script over the weekend that compares MD5's over a
directory or set of directories called dupliFinder. Works great but it
doesn't space out the output very well. There are no new lines in
between the duplicates which makes it very hard to read. Here's a
sample:

fffe47d32b00c91c2674648582989d87 /file_dir1/file1
fffe47d32b00c91c2674648582989d87 /file_dir2/files/file1
fffd46194ed4cc561a3cd6d05328d314 /filedir3/file2
fffd46194ed4cc561a3cd6d05328d314 /filedir3/filedir4/file2
fffce49e57d1acae0d9bdbac3acec17c /filedir3/why_do_people_do_this/file4
fffce49e57d1acae0d9bdbac3acec17c /filedir4/files/this_is_silly/file4a
fff91d487cee906371a78077b117965d /filedir5/file6_renamed
fff91d487cee906371a78077b117965d /filedir5/old_files/file6
fff91d487cee906371a78077b117965d /filedir5/file6
fff91d487cee906371a78077b117965d /filedir5/innerdir/oldfile/file6
fff8e5a2e87f6b1a35b594fb309e2c56 /filedir6/file7
fff8e5a2e87f6b1a35b594fb309e2c56 /filedir6/my_files/file7

I was wondering if anybody has a bash suggestion for reading the 32 char
MD5 or the first 32 chars on the line and comparing it to the next line
and if they aren't the same, insert a new blank line in between them.

Thanks!

Mike Branda Jr.

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