A macOS command line utility for listing listening TCP ports
lstcp
That's it lol.
The lsof utility which lstcp depends on requires admin privileges, so
you will be prompted for your password on using this command if you have not
provided it recently.
Using fisher:
fisher install jtrim777-dev/lstcp
This plugin depends on americanhanko/fish-spin, which in turn depends on
jorgebucaran/getopts.fish. If fisher decides to be mean and not install the
transitive dependencies for your, you can install them manually with
fisher install jorgebucaran/getopts.fish americanhanko/fish-spin