Lineselect is a shell utility to interactively select lines from stdin and output them to stdout. This allows you to effectively pause the pipeline to make a manual selection before the pipeline, or other composed command, continues.

Version 0.1.6 adds secondary output to file for later use in a different pipeline and as failsafe, support for page-up/-down keys, and a couple of bug fixes.

You can also use smenu (https://github.com/p-gen/smenu) to make these and many other selections.