Used to manipulate text files of various formats.

# To display information about foo.rtf:
textutil -info <foo.rtf>

# To convert foo.rtf into foo.html:
textutil -convert <html> <foo.rtf>

# To convert rich text to normal text:
textutil <foo.rtf> -convert <txt>

# To convert foo.txt into foo.rtf, using Times 10 for the font:
textutil -convert <rtf> -font <Times> -fontsize <10> <foo.txt>

# To 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 <index.html> *.rtf