Gnuplot through bash script

Question

I need to generate a graphic gnuplot using a bash script because I have multiple file to plot.

while [ $j -lt 30 ]; 
  do
    if [ -f ./MyFile[$j] ]; then 
    load 'Plot_Histogramma.plt'
    fi
j=$(( $j + 1 ))
done

inside "Plot_Hisogramma.plt" i have

set output "MyFile[$j].eps"
plot "./MyFile[$j]" using 2:1 title "MyTitle" with boxes ls 7 lc rgb "blue"

So I need a method to pass my index variable from the script to the gnuplot. I tried with echo, printf and export but maybe, I'm doing something wrong.

It seems to me, that you want to see `MyFile[0].eps` etc. in "Plot_Hisogramma.plt". Is this really a filename? Seems to me a bit unusual, I have a little impression that you may speak about a variable from bash, that would look like `${MyFile[0]}` in bash. If this is not a case, forget it, just a comment... — jaromrax, Apr 21 '15 at 09:05
That's normal. You can tell gnuplot to write to postscript, jpg, png, etc.. It is just setting the format for the output file (if other than the display) — David C. Rankin, Apr 21 '15 at 09:12

score 0 · Accepted Answer · edited May 23 '17 at 12:22

I think you may be misreferring the array:

while [ $j -lt 30 ]; do
    if [ -f ./${MyFile[$j]} ]; then 
    load 'Plot_Histogramma.plt'
    fi
j=$(( $j + 1 ))
done

And then the other script which I believe should be like this:

set output "${MyFile[$j]}.eps"
plot "./${MyFile[$j]}" using 2:1 title "MyTitle" with boxes ls 7 lc rgb "blue"

Also maybe this link helps: bash: loading presaved variable to gnuplot cmd load

Gnuplot through bash script

1 Answers1