Vitaly - 2011-06-01

Backquoted shell-filter to prepare data-file for plotting (as in Gnuplot) is very desirable.
If I try to use it in Pyxplot as is, I see:

pyxplot> plot  `cat  dat.txt` 
Syntax Error: expecting ":", or "axes", or "every", or "index", or "label", or "select", or "title", or "notitle", or "using", or "with", or "," or end of command.
           |
          \|/
 plot  0.1 1.2 3.1 3.0 2.1

The other drawback of backquoted shell-command -- it  doesn't  keep  the newline characters!