To cite package ‘cliff’ in publications use:

Lai R (2021). cliff: Execute Command Line Programs Interactively. R package version 0.1.2.9999, https://github.com/randy3k/cliff.

Corresponding BibTeX entry:

  @Manual{,
    title = {cliff: Execute Command Line Programs Interactively},
    author = {Randy Lai},
    year = {2021},
    note = {R package version 0.1.2.9999},
    url = {https://github.com/randy3k/cliff},
  }