Binary package “mailtextbody” in ubuntu jammy
tool to return the body of an email message
Mailtextbody reads a complete email message on stdin and returns the body
on stdout. Technically speaking, it returns the first decoded text/plain
MIME part of any (however nested) MIME message or just the body of a
non-MIME message otherwise.
.
Mailtextbody can easily be included in other tools using pipes.