SETMETAMODE(1) Linux SETMETAMODE(1) NAME setmetamode - define the keyboard meta key handling setmetamode [ meta|bit|metabit | esc|prefix|escprefix ] , setmetamode Meta ; , Meta . The Meta key mode is specific for each VT (and the VT corresponding to stdin is used). esc prefix escprefix The Meta key sends an Escape prefix. meta bit metabit The Meta key sets the high order bit of the character. setmetamode /etc/rc Meta . , : INITTY=/dev/tty[1-8] for tty in $INITTY; do setmetamode escprefix < $tty done loadkeys(1). man man https://github.com/man-pages-zh/manpages- zh 09 Oct 1997 SETMETAMODE(1)