Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

what to see what cpio would do without writing

Posted on 2012-12-24
3
Medium Priority
?
571 Views
Last Modified: 2012-12-31
I have two similar directories and I want to compare them to see what would be copied.

Normall I would cd to a dir and then just run the command:

find . -print | cpio -pdvm /foo/bar

but I cannot recall and worse find in the man to set cpio to read-only -- meaning just show me what it would have done. My memory tells me that I used to be able to do this. But I might have dreamt it since I cannot recall the last time I actually used that option.

The OS today is OS X 10.8.2
0
Comment
Question by:bs98909
3 Comments
 
LVL 80

Assisted Solution

by:arnold
arnold earned 200 total points
ID: 38718589
I do not believe cpio has a no-action mode.

You might be thinking of diff

Diff -BruN directory_origin directory_destination
The output will be a what changes need to be made to the origin directory contents to make it identical to the destination one.
Files should be regular files.

If you run the cpio you included, you will output the list of files that are copied.
0
 
LVL 29

Accepted Solution

by:
MikeOM_DBA earned 400 total points
ID: 38733265
You could also use the "dry run" option of rsync:
rsync -nrv directory_origin directory_destination

Open in new window

:p
0
 

Author Closing Comment

by:bs98909
ID: 38733589
Sorry for long delay -- holidays got in the way

both the diff and rsync would have worked -- but the rsync is more of what I was looking for

must have dreamt the cpio part
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Attention: This article will no longer be maintained. If you have any questions, please feel free to mail me. jgh@FreeBSD.org Please see http://www.freebsd.org/doc/en_US.ISO8859-1/articles/freebsd-update-server/ for the updated article. It is avail…
When you do backups in the Solaris Operating System, the file system must be inactive. Otherwise, the output may be inconsistent. A file system is inactive when it's unmounted or it's write-locked by the operating system. Although the fssnap utility…
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
In a previous video, we went over how to export a DynamoDB table into Amazon S3.  In this video, we show how to load the export from S3 into a DynamoDB table.
Suggested Courses
Course of the Month13 days, 7 hours left to enroll

963 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question