plod is gnuplot for dummies, stands for “plot data” (or “plot for dummies” I guess)

plod > g1.png
0.5 4
0.6 5
2 3
^D

nl | plod > g2.png
3
1
4
1
5
9
^D

nl | x0=0 x1=4 y0=0 y1=10 \
  style=boxes plod > g3.png
1
4
3
^D

stat -c %s * | sort -n | nl |
plod > g4.png

Oh, so I have ~630 files and the ~30 largest are using most of the space.

Well, plod is easy to use, and behaves like a software tool … so it’s not just for dummies after all.