textutil

Manipulate text files of various formats. More information: https://keith.github.io/xcode-man-pages/textutil.1.html.

• Display information about file.rtf:

textutil -info {{path/to/file.rtf}}

• Convert file.rtf into file.html:

textutil -convert html {{path/to/file.rtf}}

• Convert rich text to normal text:

textutil {{path/to/file.rtf}} -convert txt

• Convert file.txt into file.rtf, using Times 10 for the font:

textutil -convert rtf -font Times -fontsize 10 {{path/to/file.txt}}

• Load all RTF files in the current directory, concatenates their contents, and writes the result out as index.html with the HTML title set to "Several Files":

textutil -cat {{html}} -title "Several Files" -output {{path/to/index.html}} *.rtf