sed -n

-n        Suppress the default output (in which each line, after
                it is examined for editing, is written to standard
                output). Only lines explicitly selected for output are
                written.

• sed (editor)

See also

• sed, gsed, -n, -i, Ansible: replace, append, Chef: Editing a file‎‎, lineinfile
• Editors: vi, vim, sed, awk, emacs, lineinfile (Ansible), Atom, paste, Neovim, Rider, visudo, vipw, update-alternatives, nano, more, less, .vimrc, set (vi) zed
• ack, ag, grep, egrep, fgrep, agrep, ngrep, pgrep, awk, sed, strings, tr, tail, mtail, git grep, wc, uniq, LogQL, findstr (Windows), rg, git-grep, cut