DAR (Disk Archiver)

Dar is an archiver like tar. But it's more powerful. Even using compression dar has not to read the whole backup to extract one file. This way if you just want to restore one file from a huge backup, the process will be much faster than using tar. Dar first reads the catalogue (i.e. the contents of the backup), then it goes directly to the location of the saved file(s) you want to restore and then proceed to restoration. In particular using slices dar will ask only for the slice(s) containing the file(s) to restore. But you can also restore all files from an archive, dar will then read sequentially without seeking into the file, except for the first and last slice, dar will not ask twice the same slice.