SyncBack Touch is a cross-platform service that works with SyncBackPro or SyncBackSE to remotely access a device’s file system in order to perform backup/restore and sync operations. In other words, it doesn't do anything by itself but executes commands on behalf of SyncBackPro/SE that is running on a Windows PC.
You can download SyncBack Touch and check the prerequisites for Linux at the link below:
https://www.2brightsparks.com/download-syncbacktouch.html
Using command line
The downloaded file is a standard zip file which contains an executable binary. After extracting the zip file, you will need to give the binary file the execute permission (+x) using the chmod command line tool (e.g. chmod +x SyncBackTouchLinux) and then run it by entering "./SyncBackTouchLinux" (without quotes) from the terminal command line. Once started, SyncBack Touch will run in the background.
For command line parameters on how to change the password and the listening port run the program with the -help parameter to see the list of supported parameter settings (e.g. ./SyncBackTouchLinux -help).
Using the GUI
The downloaded file is a standard zip file which contains an executable binary. Right-click on the zip file and select "Extract Here" which will extract the contents of the zip into the folder. Locate the file SyncBackTouchLinux inside the extracted folder, right-click on it and select "Properties" from the pop-up menu. In the Properties window go to the "Permissions" tab, enable the option "Allow executing file as program" and close the window. Now you can run the application by double-clicking it but please note that the application is a console app with no GUI of its own and it just runs in the background as a service with no user interaction.
If you need to interact with the application then you need to run it as described in the "Using command line" section above.