gnuplot -p -e 'set terminal dumb; plot sin(x)'
1 +--------------------------------------------------------------------+
| * * + * ** + * * |
0.8 |-+ * * * * sin(x* *******-|
| * * * * * * |
0.6 |-+ * * * * * * +-|
| * * * * * * |
0.4 |*+ * * * * * *+-|
|* * * * * * * |
0.2 |*+ * * * * * *+-|
| * * * * * * * |
0 |-* * * * * * *-|
| * * * * * * *|
-0.2 |-+* * * * * * +*|
| * * * * * * *|
-0.4 |-+* * * * * * +*|
| * * * * * * |
-0.6 |-+ * * * * * * +-|
| * * * * * * |
-0.8 |-+ * * * * * * +-|
| * * + ** * + * * |
-1 +--------------------------------------------------------------------+
-10 -5 0 5 10
cat data.dat
1 2
2 3
3 4
gnuplot -p -e 'set terminal dumb; plot "data.dat" pt "*"'
4 +--------------------------------------------------------------------+
| + + + |
| "data.dat" * |
| |
| |
3.5 |-+ +-|
| |
| |
| |
| |
3 |-+ * +-|
| |
| |
| |
| |
2.5 |-+ +-|
| |
| |
| |
| + + + |
2 +--------------------------------------------------------------------+
1 1.5 2 2.5 3