how to compare two directory , the existing files are the same

catiewong · 02-26-2019, 06:45 PM

I have two directory , I would like to compare the files in these file are exactly the same , compare everything includes the file is existing , the file creation date , the file permission etc. and output the difference

I know the command "find" would find the file structure but how to better use it to compare ?

1nuxg33k · 02-26-2019, 07:33 PM

uniq -u. This will print uniq lines from two files.

Code:

uniq -u File1 File2

As for the File creation date and permissions you would probably have to pipe the ls command to uniq or just compare the two files with ls and note the date and permissions.

Ztcoracat · 02-26-2019, 07:35 PM

Hi:

If all you want to do is compare files use the diff command:-

Code:

diff file1 file2

Different ways to use the diff cmd.
https://www.lifewire.com/compare-two...-linux-3861434

syg00 · 02-26-2019, 07:49 PM

A simple search for "duplicate file linux" will give you several options. Do basic research yourself.

catiewong · 02-26-2019, 08:28 PM

Quote:

Originally Posted by 1nuxg33k

uniq -u. This will print uniq lines from two files.

Code:

uniq -u File1 File2

As for the File creation date and permissions you would probably have to pipe the ls command to uniq or just compare the two files with ls and note the date and permissions.

sorry , may be I rephrase my question , what I want is to find the difference of two directories , not only two files .

thanks

scasey · 02-26-2019, 08:37 PM

Quote:

Originally Posted by catiewong

I have two directory , I would like to compare the files in these file are exactly the same , compare everything includes the file is existing , the file creation date , the file permission etc. and output the difference

I know the command "find" would find the file structure but how to better use it to compare ?

Capture a long directory listing for each directory into separate files.
Use diff to compare the files. '

man ls for the long listing
man diff

Ztcoracat · 02-27-2019, 03:12 PM

Quote:

Originally Posted by catiewong

sorry , may be I rephrase my question , what I want is to find the difference of two directories , not only two files .

thanks

This was an easy Google search:-

How to Find Difference Between Two Directories Using Diff and Meld Tools
https://www.tecmint.com/compare-find...ries-in-linux/