The tag has no wiki summary.

learn more… | top users | synonyms

2
votes
3answers
53 views

How to check if the ISO was written to my USB stick without errors?

I followed these DebianEeePC HowTo InstallUsingStandardInstaller instructions at the Debian Wiki, to write a Debian ISO to my USB. dd if=debian-*-netinst.iso of=/dev/sdX Using sha1sum, I can check ...
18
votes
7answers
5k views

How do I get the MD5 sum of a directory's contents as one sum?

The md5sum program does not provide checksums for directories. I want to get a single MD5 checksum for the entire contents of a directory, including files in sub-directories. That is, one combined ...
0
votes
0answers
40 views

Checksum on Network drive is really slow

I want to check if a bunch of files have copied without problem to a network drive. I am not able to ssh to the network drive, but I am able to mount it using FTP. The number of files is about 220, ...
1
vote
3answers
89 views

Sanity checking MD5 sums

Do MD5 checksums contain a checkbit? I have to copy some MD5 checksums by hand (there's no other way) and was wondering whether there is any code out there that can validate a checksum as being valid ...
2
votes
2answers
263 views

Running sha1sum into several directories

I have several directories that share a common parent directory. In each directory there are regular files, but no other subdirectories. Something like this: top/dir-1 top/dir-1/file-11 ...
-2
votes
1answer
771 views

Bash function to compare two binary files [closed]

I need a function to compare 2 binary files, here the requirements: 2 files, not 3 or 4 files can't be assumed to exist avoid running checksum (CRC/MD5/SHA/...) until one must if running multiple ...
0
votes
1answer
793 views

How to create a md5-file for every folder in a drive recursivley?

I'm searching for a script which creates a md5 chechsum file for every single folder inside drive recursivley? I do have a copy of md5deep on my machine but I'm not that good in scripting bash.
2
votes
0answers
222 views

Software raid checksumming slow

On my new 24 disk array I get 900 MB/s of raw read or write using dd to all the disks. When I set the disks up as a 24 disk RAID6 I get 400 MB/s write and 600 MB/s read. It seems to be due to ...
3
votes
1answer
225 views

FLAC correctness using MD5 placed in STREAMINFO

I know from [Sources], that FLAC computes CRC and MD5. What I am afraid that flac --test only does CRC test - as stated in man flac : same as -d except no decoded file is written . How to check flac ...
4
votes
1answer
315 views

Appending checksum information to file

I'd like to embed checksum information into file, that I transfer. It's tar.gz or tar.xz file and I can only transfer one file to remote side. How do you recommend I embed checksum information? I ...
1
vote
2answers
168 views

Is there file format for checksums?

I want to store SHA512 checksum of the file for my application. How to do it in common (popular) way? So this checksum can be used but by third party application too.
6
votes
3answers
2k views

Is there MD5 (or similar) to a folder? How to verify if two folders are equal?

I'd like to find an md5sum (or similar calculation) of a folder without compressing it into an archive. For example, if in the folder MyFolder we have the files 1.txt, 2.txt and 3.txt, containing: ...
0
votes
0answers
286 views

Shell redirection all of a sudden not working? [closed]

I have a Canon camera mounted with gphotofs and I'm trying to essentially do an md5sum on all of the files, but I need to rename the files before I write them to my file, so sed is in the equation. ...
4
votes
1answer
1k views

Obtaining md5 during wget

I'm wget'ing huge files (over 100GB) and then comparing my md5sum to the sum posted in the repository. Believe it or not, md5sum takes a nontrivial amount of time to run on a file of this size, so ...
2
votes
3answers
7k views

How to check if a file is corrupt or not?

Are there any general solutions to check if a file is corrupt or not? For example, whether a video file is bad, or a compressed file is corrupt, etc.
1
vote
3answers
146 views

Tool to remove all non-package files on a system

If you want to keep for example a build or server system clean, it is very useful to be able to check that all files are present and accounted for by the package metadata. At work we have a very nice ...