[X-Unix] finding duplicate files

[Eric F Crist]

On Jun 20, 2007, at 12:27 PMJun 20, 2007, Robert Hoy wrote:

> Hi.  Is there an efficient way to find files which are present in  
> both gzipped and ungzipped form?
> They would be in the same directory, but I would like to search  
> across all directories from one at high level.  That is, I want to  
> find all cases where "a" and "a.gz" are present in the same directory.
>
> Thanks,
> Rob
>

If you've got perl available, here's what I used:

#!/usr/bin/perl

foreach $file (`find . | grep -v .gz`) {
	chomp($file = $file);
	if (-e "$file.gz"){
		print "$file\n";
	}
}

If you don't want to put that in a file and run it, you can do the  
following just as easily:
 From a command prompt:

perl -e 'foreach $file ( `find . | grep -v .gz` ) { chomp ( $file =  
$file ) ; if ( -e "$file.gz" ) { print "$file\n" ; } }'

This will search all directories from where it's run for file and if  
file.gz exists, it will print the file name and directory.  Note,  
this doesn't search to see if file and file.gz exist in different  
directories.
-----
Eric F Crist
Secure Computing Networks