Synchronization is the coordination of events to operate a system in unison. I'll probably try out those fancier setups after I've rsyncd for a while. Instead of copying every file every time, FreeFileSync determines the. I was a bit too lazy to try putting Lsyncd & rsync or Lsyncd & Unison together my primary use-case really is just backing up a directory from my laptop into my external hard drive - which is quite satisfiable by manually-triggered uni-directional backup - which currently I'm (shamefully) not actually doing in any systematic way at all. Lsyncd seems to be sort of like watch, but calls either rsync or a command specified in a configuration file upon the watched files being changed. to the keypress - response is made before I even hit after a keypress).Īgain, we can cron but is there something that perhaps gives (at least semi-) real-time "watching" and triggers Unison (or rsync) automatically? Well, enter lsyncd. Although it believably seems configurable and scriptable, the default behaviour is highly interactive (i.e. Google goes through all your personal information for their benefit and profit. Google Drive is quasi-dangerous for personal use, among friends, or within a company. Google Drive is unnecessary unless the person truly wants to do public sharing. So, trying out their simple local usage tutorial (anchor #local on the same page), I got a general feeling of Unison. Better for protection of personal data and file transfers. Users can compare 2 folders/sources and synchronize files from one source to the second one. Reading their manual a bit, this seems like the exact piece of the puzzle we want (in order to achieve bi-di sync). FreeFileSync is another open source alternative for folder comparison and backup/synchronization. Or buy one router that allows you to connect a USB disk to it and share over the. FreeFileSync will see the remote disk as it was on the local network. Across networks: create a VPN and do the same as above. Unison is, as is claims, a "file synchronizer". Unison asks what to do when files are different, but you can automate the process by using the following which accepts default. It seems good for backing stuff up, especially when being used as a cron job - but for bi-directional syncing, which is our goal here, that's not enough. So basically, all rsync does is copy files. Turns out that it was quite simple: it's kinda like cp (or rather, scp), except that it can work with remote machines, by default via SSH, and has smart algorithms that moves only deltas / "patches", which speeds things up a lot. Every machine that wants to sync a folder runs the SyncThing binary in the background. But it’s built for network synchronizing. (More complicated than rsync, since it maintains state between synchronization runs). There is also this thing called rsync which people mention all the time, but seems a bit mysterious. In that way it’s a lot like Unison, or FreeFileSync. Instead, you will need to get it from a software repository such as Filehippo. You can download FreeFileSync from the developer's website, but since January 2021, SyncToy can no longer be downloaded directly from Microsoft. One thing that I am NOT doing is syncing via the internet (thanks to what I have learned from Steve) Since the size of my sync data needs are low and I don't do remote computing, syncing via removable media covers my current travel needs.There is FreeFileSync which shows the idea of a bi-directional, automatically-file-watching file sync tool, and is quite nice - apart from that it's unclear how to automate it. Both FreeFileSync and SyncToy are free to download and use. I am currently reviewing FreeFileSync's model to see if that is at least acceptable for the near future and will continue to review all of the suggestions that have been posted in this thread and elsewhere here. It would be interesting to know if any other sync software has this option (I have not seen it in my searches) That also includes Android devices connected via USB so I can sync directly to an sd card mounted in my phone. Not taking that into consideration, FreeFileSync has a lot of features and discoveries that I have come to rely on, most recently, the ability to sync to drives and sd cards using volume names rather than drive letters. and, when that happens, it's the principal of the thing, especially in this case when the situation exposed additional limits and restrictions. As a programmer for forty years, I pay for software I use, but, I really don't like the subscription model which FreeFileSync uses and I got bitten by it when I was away from home for over a month. The differences in capabilities and limits, especially those you have come to rely on, make this a difficult decision. As usual, with something you have been using for decades and familiar with, deciding on an alternative is complex and difficult. Thanks again for all of the responses and suggestions.
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