Linux md5sum script

Hello,

I would like a script to achieve the following:

(Example locations only)
/tmp/sample-files contains the following files: md5-1, md5-2, md5-3 etc

1. Run the script against the target directory /tmp/sample-files
2. Create a file that contains a list of the files to be checksummed (md5-sum-src)
3. Run the md5sum command against the above file and output the results to another file (md5-sum-results).


Thanks,

Phil
LVL 1
PhilMacavityAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

woolmilkporcCommented:
Why do you need an intermediate file?

Just run

md5sum /tmp/sample-files/* > md5-sum-results

That's all.

wmp
0
PhilMacavityAuthor Commented:
Hi Wmp,

Thaks for the comment.

md5sum /tmp/sample-files/* > md5-sum-results would work for my initial plans . Instead of, having to run the md5sum command multiple times against the target directories, i was planning to run it once against a src file containing a list of the files to be checksummed.

Cheers,

Phil.
0
woolmilkporcCommented:
To pull a checksum you will have to access the files (and thus their directories) nonetheless, so what should the file be good for?

Do you expect that the contents of the directories change regularly?

Ok, using an intermediate file would avoid checking new files (which might be intended), but would also try to checksum deleted files, which will lead to errors.

And you don't have to run the md5sum command multiple times:

md5sum /tmp/sample-files-1/* /tmp/sample-files-2/* /tmp/sample-files-3/* > md5-sum-results

Anyway:

find  /tmp/sample-files -type f > md5-sum-src

while read file; do
  md5sum $file >> md5-sum-results
   done < md5-sum-src

wmp
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
PhilMacavityAuthor Commented:
Hi wmp,

Thanks for the suggestions. These should be enough for me to achieve what i need.

Cheers,

Phil
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Linux

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.