.IR string ]
.RB [ \-width
.IR columns ]
-.RB [ \-reverse " | " \-noreverse ]
.RB [ \-file
.IR filename ]
.RB [ \-version ]
character set, if it is not US-ASCII. See the mh-profile(5) man
page for details about this environment variable.
.PP
-The switch
-.BR \-reverse ,
-makes
-.B scan
-list the messages in reverse
-order.
-.PP
The
.B \-file
.I filename
.BR packf .
This listing
includes every message in the file (you can't scan individual messages).
-The switch
-.B \-reverse
-is ignored with this option.
.PP
The switch
.B \-width