sarplot - a script to turn the extremly useful data produced from sar/sysstat into ASCII graphs using gnuplot

Example plot of 1 minute load averages:

$ ./sarplot -m load

                                 1 Minute Load Average

    0.08   -- ---- --- --- --- ---- --* --- --- ---- ---*--- --- ---- --- --  
                                      *         1 Minute Load Average ******  
    0.07                              *                 *                     
         |                            *                 *                    |
    0.06                              *                 *                     
         |                            *                 *                    |
         |                            *                 *                    |
    0.05                              *    *            *                     
         |                            *    *            *                    |
    0.04                              *    *            **     *              
         |                           **    *           * *     *             |
    0.03                *            **    * *         * *     *              
         |              *            **    * *         * *     *             |
    0.02                *            ** * ** *  *      * *    **              
         |              *            ** * ** *  *      * *    * *            |
         |              **           ** * ****  *      * *    * *            |
    0.01                **  *        *** *****  **     * *    * *             
                        **  *        *** *****  **     * *    * *             
       0 ***************-***************-*************** ******-******--- --  
       00:00    02:00   04:00    06:00   08:00    10:00   12:00    14:00  16:00
                                         Time

Example with date and metric specified:

$ sarplot -m load -d 25
                               1 Minute Load Average

    3   - -- -- -- -- -- - -- -- -- -- -- -- -- -- -- -- -- - -- -- -- -- -  
                                               1 Minute Load Average ******  
      |                                                      *              |
  2.5                                                        *               
      |                                                      *              |
      |                                                      *              |
    2                                                        *      *        
      |                                                      *      *       |
      |                                       *         *    *      *       |
  1.5                                         *         **   * *    ***      
      |                                       *         **   * *    ***     |
      |           *                           *  *      ***  ****  ** *     |
    1             *                   *      **  *     **** *****  ** **  ** 
      |           *              * **** **   **  * * ***** ** ******* *** **|
      |           *              ************************* **  ****** *******
  0.5 *           *           *  **************** ***   ** *    **     * * **
      |***    *** **        * *********** ******  **    *                * *|
       ***** ********  *** ** *****     * *    *                             
    0   -*-**********************-- -- -- -- -- -- -- -- -- - -- -- -- -- -  
    25/11 25/11 25/11 25/1125/11 25/11 25/11 25/11 25/11 25/1125/11 25/11 26/11
    00:00 02:00 04:00 06:0008:00 10:00 12:00 14:00 16:00 18:0020:00 22:00 00:00