@hackage backstop1.3.0.354

Backstop a target directory by source directories

The backstop command is a UNIX, Linux, and *BSD tool. Intuitively, backstop fills in the missing objects or holes that exist in the target directory relative to the source directories thereby creating a merged view of the target and source directories. De-backstop undoes this. See "backstop -m" for a manual page or the homepage for more information.