The `dumb` terminal driver plots into a text block using ascii characters. It has an optional size specification and a trailing linefeed flag.
Syntax:
set terminal dumb {size <xchars>,<ychars>} {[no]feed} {[no]enhanced}
where <xchars> and <ychars> set the size of the text block. The default is 79 by 24. The last newline is printed only if `feed` is enabled.
Example:
set term dumb size 60,15 plot [-5:6.5] sin(x) with impulse
1 +-------------------------------------------------+ 0.8 +|||++ ++||||++ sin(x) +----+ | 0.6 +|||||+ ++|||||||+ | 0.4 +||||||+ ++|||||||||+ | 0.2 +|||||||+ ++|||||||||||+ +| 0 ++++++++++++++++++++++++++++++++++++++++++++++++++| -0.2 + +|||||||||||+ +|||||||||||+ | -0.4 + +|||||||||+ +|||||||||+ | -0.6 + +|||||||+ +|||||||+ | -0.8 + + ++||||+ + + ++||||+ + | -1 +---+--------+--------+-------+--------+--------+-+ -4 -2 0 2 4 6 "