rsync is a tool to efficiently copy directory hierarchies, locally or remotely, with powerful filters to decide what gets copied.

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5
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3answers
885 views

Two-way rsync results in oscillating content

I am trying to sync content between two servers. The servers are identical builds (Ubuntu 12.04LTS) and have this cron job running to sync the content: rsync -arzc --update --delete ...
5
votes
2answers
2k views

rsync-like tool that supports compression and maintains hardlinks?

I use an rsync-based backup scheme to maintain daily (and soon weekly and monthly as well) "snapshots" of my file server, using rsync's link-dest feature to store hardlinks between the snapshots for ...
5
votes
1answer
5k views

preserving extended attributes with cp/rsync

When copying with cp, the extended attributes are not preserved, even with explicit cp -a --preserve=all /source /dest or cp -a --preserve=xattr /source /dest The same is with rsync, i.e. ...
5
votes
2answers
2k views

Can't share an ssh connection with rsync

In my .ssh/config file I have the following: Host xxx User yyy HostName zzzz ControlMaster auto ControlPath ~/.ssh/%r@%h:%p This works great for multiplexing my ssh connections (i.e. login once, ...
5
votes
3answers
4k views

rsync and write permissions at the target

I always wondered why rsync tries to transfer a file to a remote location where it has read/execute permissions for the target dir, but no write permissions to create the actual destination file. This ...
5
votes
2answers
826 views

Sync files from a mac to a flash drive - automatically?

I have a flash drive, let's name it FLASH. I want, when on my mac, when FLASH is plugged (and automatically mounted), execute a specific script and make ~/Documents to be automatically copied to ...
5
votes
3answers
250 views

rsync: continue or in random order

I use rsync over tor. It works for a while, then it drops the connection. That in itself is not a big problem and I suppose it is not entirely unexpected when running long sessions over tor that takes ...
5
votes
1answer
593 views

easy rsync solution with file manager (thunar or nautilus or…)

A common tasks I teach new users in UNIX is how to make backups. Since most are not comfortable with the command line (CLI) and I want to have them make backups (more than forcing them to use the ...
5
votes
1answer
5k views

Rsync — Itemized List of Changes

I've learned that with the -i option, I can get rsync to list all the changes it makes. I've been using it along with the -n or --dry-run options so that I can always learn about all expected changes ...
5
votes
1answer
273 views

How can I synchronize all PDFs from one directory with Dropbox?

I want to synchronize all the PDFs from one directory (my Zotero library) to Dropbox. Finally, I want to have a list of all the PDFs, not the directory names. I successfully synchronized all my PDFs ...
5
votes
1answer
462 views

How to merge multiple WebDAV accounts for backup?

I use davfs, aufs, rsync: sudo mount -t davfs -o uid=wd,gid=wd,dir_mode=777,rw https://wd1.wd.wd/ /mnt/webdav1 sudo mount -t davfs -o uid=wd,gid=wd,dir_mode=777,rw https://wd1.wd.wd/ /mnt/webdav2 ...
5
votes
3answers
3k views

One-way-sync a directory, but leave deleted files deleted on the destination

I want to sync a directory between two systems. To make it more interesting the syncing must only be done in one direction, i.e.: if a file is deleted in the source directory, it must also be ...
4
votes
3answers
1k views

rsync server/daemon security

I have a NAS (Netgear Readynas NV+) at home and a linux (Arch) box at work that is always on. The linux box is already running an ssh server/daemon and the NAS is already running an rsync ...
4
votes
4answers
3k views

Is setting a higher nice level for a process an effective way to reduce its impact on system load/CPU time?

I have an rsync cron job which is pushing the server load and triggering monitor alerts. If I set the job to be run with a high nice level, would that effectively reduce the impact it has on system ...
4
votes
1answer
5k views

Why rsync attempts to copy file that is already up-to-date?

I have two same files, on local machine and on remote one. Their sizes are equal, and file on local machine is newer than on remote one - but rsync still attempts to copy the file. I invoke rsync as ...
4
votes
2answers
2k views

How to use rsync with a remote remote host

I am a happy user of rsync -e ssh and use it to synchronize data between my machine and a remote host using rsync -avz -e ssh me@hostA:~/folder ~/folder And this did what I needed until now. I am ...
4
votes
1answer
127 views

Should the key for an automatically running cron job that runs over ssh not have a passphrase?

I'm reading an article in Master Linux Now 2013 called OpenSSH: Easy Logins and it uses ssh-agent to allow you to enter a passphrase for your key once, and then you're able to connect to a remote ...
4
votes
3answers
5k views

Does compression option -z with rsync speed up backup

In rsync, -z will compress file data during the transfer. If I understand correctly, -z compress files before transfer and then decompress them after transfer. Does the time reduced during ...
4
votes
1answer
522 views

Is rsync really bidirectional or more unidirectional?

So I understand that rsync works by using a checksum algorithm that updates files according to file size and date. But isn't this synchronization dependent on how source and destination are called? ...
4
votes
4answers
1k views

The most *robust* remote file copy?

How would I go about to copy files over a very unstable internet connection? Sometimes, the connection is lost, other times the IP of one machine or the other machine is changed, sometimes both, ...
4
votes
2answers
7k views

How to see the total progress while copying the files

We know that if we give --progress parameter to rsync it will show the progress of files copied. But issue is that is shows the progress for each single file not total or overall progress. So how to ...
4
votes
1answer
701 views

Is there a way to put comments in an rsync --files-from file?

I have a file that rsync uses as --files-from: dir1 dir2 dir3 I want to be able to put comments above each dir entry like that: # my dir1 comment dir1 #dir2 comment dir2 #yet another comment ...
4
votes
4answers
7k views

How to exclude numeric directories with rsync?

I know rsync has an --exclude option which I use quite frequently. But how can I specify that it should exclude all "numeric" directories? In the directory listing below I would like to only have it ...
4
votes
3answers
2k views

Help Shell script to pass variables to rsync

I'm trying to create a simple wrapper shell script for rsync. When I send file names to my script, rsync can never seem to identify the correct location. The file names have spaces in them. I've tried ...
4
votes
3answers
743 views

Monitor directory and if a file is requested then rsync on demand

Is there a tool that monitors a certain directory and if a program tries to access a file in that directory, the program loads that file from another place transparent for any application that tries ...
4
votes
1answer
450 views

What does all this extra data from rsync mean?

When I move directories with rsync, I get some extra data to the right of the progress bar right after each file has been copied: $ rsync -aP assembly /media/andreas/backup sending incremental file ...
4
votes
2answers
471 views

Rsync won't Give Up Writing to an Unmounted Remote Drive

I've been having issues with a external hard drive staying mounted to a mount point. That's not the topic of this question, but background info. The issue is with rsync. It doesn't seem to recognize ...
4
votes
1answer
199 views

rsync move files, leave directories?

I'm using rsync to copy data between my internal and external hard drives. It's done what I need, but I'm running out of room on my internal hard drive. So, is there any way to get rsync to function ...
4
votes
3answers
906 views

from a sparse file to a block device over the network

If I have a sparse file representing a block device, then how can I efficiently restore the file over a network? Ideally, I'd use rsync -S host:file /dev/sdb, but rsync won't write to block devices. ...
4
votes
1answer
517 views

Using rsync + cron to sync a machine behind a firewall with my dropbox

I have a machine (A) behind a firewall with no access to the Internet, on this machine I can NFS mount directories on another machine (B) which can access internet, and is accessible from Internet, ...
4
votes
1answer
1k views

Do any Linux distributions have a folder sync option (like briefcase in windows)?

I want to keep my local folder synchronized with a network folder. Is there any folder synchronization utility or feature in Linux?
4
votes
2answers
580 views

How to synchronize a networked drive and an external drive (Ubuntu & OS X)?

In light of a recent hardware failure, I've decided that it's time to be a little less lax regarding back-ups. What I have: An Ubuntu 10.10 'server/NAS' A MacBook 5,2 A WD external HDD The server ...
4
votes
2answers
130 views

How do I sync files between two drives?

What command can check that a directory contains the same files as another directory, all the files are up to date and copy any updated files or new files to the first directory. It should not care ...
4
votes
1answer
1k views

how to get rsync to link identical files with --link-dest option if an old file already exists?

One might think that --link-dest'ing to an identical file would work in all cases. But it does not when the file exists, even if the file is out of date/has different contents. It is because of this, ...
4
votes
1answer
2k views

sudo askpass: ask from other tty

Context I want to setup rsync backups of my server, so I run the following command rsync -r -e ssh --rsync-path="sudo rsync" rsyncuser@example.com:/ /backup/ Ideally, that command would ask my ...
4
votes
1answer
682 views

Only use mtime comparison with rsync?

Is it possible to sync files via rsync and let rsync only compare mtime informations? Or is there another tool for this job? That means that such a tool only copies src to destination if the src is ...
4
votes
1answer
3k views

Asking rsync to create *any* necessary directories

I have the following loop in zsh: for x in my_folders*; do rsync -adrv $x/foo/bar/ /foo2/bar2/new_dir/$x/ done new_dir does not exist before calling rsync, and I would like rsync to create ...
4
votes
1answer
231 views

rsync's relationship with special files

I'm trying to transfer some existing backups from one system to another. The older backup system seems to have managed to back up special files like /dev/hda, /dev/tty0, and /dev/null which look like ...
4
votes
1answer
280 views

Using inotifywait along with vim

I have simple script that monitors file for changes and rsyncs it with remote copy: #!/bin/bash while inotifywait -e close_write somefile do rsync somefile user@host.domain:./somefile done It ...
4
votes
1answer
958 views

Rsync folder while --exclude-from'ing .gitignore files at different depths

So I'm trying to work on a command to rsync a source folder with a structure like so: - app.js - .gitignore - src/ - src/logs/ - src/logs/.gitignore The first .gitignore would have a series of ...
4
votes
1answer
81 views

Use rsync to just get a folder and its content with a pattern

I've looked all around the internet, looked in regexp sites and everything else, but I'm unable to write a rsync command to fetch what I want to. I need to mirror the FreeBSD release, but I don't ...
4
votes
1answer
246 views

“hard-linking” parts of a big file in which only a small part has changed

I use rsync to make backups: rsync -a --link-dest=PATHTO/$PREVIOUSBACKUP $SOURCE $CURRENTBACKUP This way I save space due to using hard links. The problem appears when I need to backup a huge file ...
4
votes
1answer
3k views

Rsync --backup-dir seems to be ignored

I want to use rsync to backup a directory from a local location to a remote location, and store changed files in another remote location. I did use: rsync -rcvhL --progress --backup \ ...
4
votes
3answers
1k views

How to avoid unnecessary deletion and recopying of moved folders when using rsync? [duplicate]

I've read that rsync cannot detect moved folders, and simply delete and recopy them into the new folder structure. Since the only change I did to my master copy is the simple introduction of a top ...
4
votes
2answers
7k views

How do I rsync only some files in some directories

I'm trying to sync all *.jpg files from /var/www/data/models/days/ + some other directories from /var/www/data root. I do: rsync -az --delete --include='/models' --include='*.jpg' --exclude='*' ...
4
votes
2answers
695 views

How to rsync a chroot without breaking symlinks?

I'd like to rsync (backup) a chroot environment from outside the chroot. For that I first make a lvm snapshot of the chroot volume and then run rsync on that. The only problem with this approach: ...
4
votes
1answer
1k views

Is there any way to rsync absolute symlinks alone?

I want to sync a big folder hierarchy between two machines. I want to copy the contents of the symlinks if they are absolute, for eg it points to /some/folder/someFile I want to retain the symlinks if ...
4
votes
1answer
58 views

Different rsync behavior for identical directory name

I want to synchronize 2 codebases. The below command is working great, except that it doesn't account for one use case that I have with 2 directories named test in different locations: /test/ ...
4
votes
1answer
84 views

Edge cases in filesystem operations during backup and file copy

I have a question about file access in Linux that I cannot sum it up completely. Consider that I have a home directory that I backup it using rsync triggered via cron. My home directory is on an EXT4 ...
4
votes
1answer
32 views

Reuse rsync --dry-run output

I usually do rsync -n before doing an actual rsync. The thing is, how could I automate the second run to reuse exactly the list generated with --dry-run? I mean, if I run rsync -n then I get a ...