text/html; links %s; needsterminal
application/html; links %s; needsterminal
application/x-tar-gz; vim %s; needsterminal

text/html; w3m -cols $COLUMNS -T text/html -o display_link_number=1 -dump '%s'; copiousoutput
application/postscript; ps2ascii %s; copiousoutput
application/pdf; ps2ascii %s; copiousoutput; nametemplate=%s.pdf
application/msword; catdoc %s; copiousoutput

application/x-tar-gz; gunzip -c %s | tar tf -; copiousoutput
application/x-gunzip; gzcat; copiousoutput
application/x-gzip; gzcat; copiousoutput
application/x-xz; xzcat; copiousoutput