Using Linux,

Use ~sed~ to substitute all words beginning with an S or s to REDACTED. Input: In this very attitude did I sit when I called to him, rapidly stating what it was I wanted him to donamely, to examine a small paper with me. Imagine my surprise, nay, my consternation, when without moving from his privacy, Bartleby in a singularly mild, firm voice, replied, I would prefer not to. Some lines to consider may be tricky, if they include say: "stuff like this?" Output: In this very attitude did I REDACTED when I called to him, rapidly REDACTED what it was I wanted him to donamely, to examine a REDACTED paper with me. Imagine my REDACTED, nay, my consternation, when without moving from his privacy, Bartleby in a REDACTED mild, firm voice, replied, I would prefer not to. REDACTED lines to consider may be tricky, if they include REDACTED: "REDACTED like this?"