Command Line Use
================

PDA is also capable of plotting files directly from the command line.

Usage::

  pda.sh [-v] -p pngfile [dim] -f files... -s series...
        -v        verbose
        pngfile   filename of image to plot
        dim       dimension of image (default: 1024x768)
        files...  files to plot (use 'file@parser' to specify parser class to use)
        series... series to plot (regular expressions matching series names)

Specify a list of files to be parsed, and a list of series from these files to be plotted.
The parser for each file will be automatically selected based on the best matching parser.
To override the parser selection for a file, append *@parserclass` to the filename, where *parserclass*
is the class name of the parser to be used.

Examples
--------

To plot the *usr* and *sys* time from *vmstat.log* to a file *vmstat.png*::

  pda.sh -p vmstat.png -f vmstat.log -s usr sys

For the same plot with an image size of 800x600 pixel::

  pda.sh -p vmstat.png 800x600 -f vmstat.log -s usr sys

To plot the *r/s* and *w/s* series from all disks in all iostat output files::

  pda.sh -p iostat.png -f iostat*.out -s disk:.*:[rw]/s

To plot cpu time (series that *end* with "cpu") and disk reads and writes from two different files::

  pda.sh -p plot.png -f vmstat.out iostat.out -s cpu$ all::[rw]/s