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0 votes
1 answer
35 views

check files difference with multiple folders

I would like to check when a file differ inside a backup system using snapshots. I have several folders with the same architecture inside ls -1 .snapshot 4-hourly.2024-04-14_0405 4-hourly.2024-04-...
ppr's user avatar
  • 1,977
0 votes
1 answer
608 views

Best way to compare/diff two big directories that are backups (by `rsync -aAX`) of a boot partition from another computer?

[ EDIT: Answered my own question. Used unison and some hacky post-processing ( copy-pasted the log output of unison, tweaked it in my text-editor with multi-selection editing, then did some shell ...
dwawlyn's user avatar
  • 23
0 votes
0 answers
34 views

Software for directory integrity

I keep a directory on my home server with all of my important files on it. I want to make offline backups of this directory. But as I add and modify file, I also want to be able to make comparisons ...
Tac-Tics's user avatar
  • 101
2 votes
2 answers
157 views

Compare two files, while overriding second file's size

I am trying to verify a backup that I made using the following command: dd if=/dev/sda of=/dev/sdc2 I backed up the contents of /dev/sda (internal hard drive) to /dev/sdc2 (external backup drive, ...
FelixIsDev's user avatar
3 votes
3 answers
820 views

Rebuild original file from diff files to save disk space

Every day 10GB text file is downloaded, the file is ~200 million lines and ~1% of the lines are changed the next day. I want to keep daily files as backup, but I'm trying to save disk space by using ...
Yoan Arnaudov's user avatar
9 votes
2 answers
26k views

Compare directory trees regarding file name (and size and date) [duplicate]

I want to check the results of a restore from backup. This is, because TimeMachine on MacOS gives me some weird errors and warnings and I want to make sure, everything is in its place again after ...
Ariser's user avatar
  • 303
1 vote
1 answer
122 views

Interactive backup tool

I am looking for a backup (or diff) tool where I can select interactively which file I want to copy towards my external hard-disk. Let me explain with further details: I have two computers and an ...
Kevin's user avatar
  • 185
19 votes
5 answers
1k views

rolling diffs for storage of highly similar files?

At work we do a nightly dump of our mysql databases. From day to day, I would guestimate that close to 90-95% of the data is duplicate, increasing as time goes on. ( Heck at this point some are ...
user394's user avatar
  • 14.7k