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Asked: 2026-05-10T16:15:53+00:00

Is there a good command-line UNIX charting / graphing / plotting tool out there?

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Is there a good command-line UNIX charting / graphing / plotting tool out there? I’m looking for something that will plot xy points on an ASCII graph.

Just to clarify, I’m looking for something that will output a graph in ASCII (like ascii-art style), so I can use it over an interactive shell session without needing X.

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1 Answer

  1. Try gnuplot. It has very powerful graphing possibilities.

    It can output to your terminal in the following way:

    gnuplot> set terminal dumb Terminal type set to 'dumb' Options are 'feed 79 24' gnuplot> plot sin(x)     1 ++----------------**---------------+----**-----------+--------**-----++      +                *+ *              +   *  *          +  sin(x) ****** +  0.8 ++              *    *                *    *                *    *   ++      |               *    *                *    *                *    *    |  0.6 ++              *     *              *      *              *      *  ++      *              *       *             *       *             *      *   |  0.4 +*             *       *             *       *             *      *  ++      |*            *        *            *        *            *        *  |  0.2 +*            *        *            *        *            *        * ++      | *          *          *          *          *          *          * |    0 ++*          *          *          *          *          *          *++      |  *         *           *         *           *         *           *| -0.2 ++ *         *           *         *           *         *           *+      |   *       *            *        *            *        *            *| -0.4 ++  *       *            *        *            *        *            *+      |   *      *              *      *              *      *              * -0.6 ++  *      *              *      *              *      *             ++      |    *     *               *     *               *    *               | -0.8 ++    *   *                 *   *                *    *              ++      +     *  *        +         *  *   +              *  *                +   -1 ++-----**---------+----------**----+---------------**+---------------++     -10               -5                0                 5                10
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