rarcursed uses 7zip to extract files, make sure it is available in your PATH environment.
install Go and setup your GOPATH
git clone https://github.com/jayrox/rarcursed
cd rarcursed
go build
rcd -dir /path/to/rars
-d - debug output
-dir - directory to scan, extract, cleanup - default cwd
-tar - directory to extract to - default cwd
-min - minimum file size to keep
-test - run process but don't delete files
-rem - extra file types to clean up (*.nfo, *.sfv)