rlcmp is simple recursive file compare tool for UNIX systems
which (in contrast to diff(1)) never follows symbolic links.
The tool can be used to check the integrity of local backups
or doing verified data moves between different local file systems
with a sequence cp -RpP ..., rlcmp ..., rm -rf... .
Due to the limited functionality of rlcmp
it is faster than diff(1).
So for simple file or directory integrity tests
with just a pass/fail result it can be used as a fast alternative.
Additional information can be found in the manual page and the installation instructions.
The tool is downloaded with
git clone https://github.com/n-t-roff/rlcmp.git
and can be updated with
git pull