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f(w) = (strlen(w) > 10 ? word(w, 1) . "\n" . word(w, 2) : w)
set title "CLUSTER 1"
set terminal png truecolor size 960, 720
set output 'cluster2.png'
set bmargin at screen 0.1
set key top center
set grid
set style data histograms
set style fill solid 1.00 border -1
set boxwidth 0.7 relative
set yrange [0:]
set format y "%g%%"
set datafile separator ","
plot "/var/www/cgi-bin/CLUSTER_1.txt" using 2:xtic(f(stringcolumn(1))) title " CPU consumption (%) ", \
'' using 3 title " RAM consumption (%)", \
'' using 0:($2+1):(sprintf("%g%%",$2)) with labels notitle, \
'' using 0:($3+1):(sprintf(" %g%%",$3)) with labels notitle
This graph should be generated when I click on the button :
A guess:
The apache user doesn't have write permissions in the directory, so it can't open the output file.
That would be typical. Create a new directory, owned by the apache user, then direct the output to that new directory. You can then display it from there once it's generated.
You really don't want to clutter up your cgi directory with the output of your script, anyway.
A guess:
The apache user doesn't have write permissions in the directory, so it can't open the output file.
That would be typical. Create a new directory, owned by the apache user, then direct the output to that new directory. You can then display it from there once it's generated.
You really don't want to clutter up your cgi directory with the output of your script, anyway.
Hello,
Thank you for your answer !
When you say " Create a new directory, owned by the apache user ", you mean : create a directory in my cgi-bin and make " chown apache:apache my_new_directory " ? If is that, it doesn't work :
I change the path of the output in my gnuplot script to " set output /var/www/cgi-bin/cluster1.png " to "set output /var/www/cgi-bin/my_new_directory " and this is my error_lor :
But I think I missed somethings and for the moment, my technical level is still weak, which doesn't help matters ! I'm a beginner in apprenticeship, so I continue to study !
Looks like the same error, yes?
I’m still guessing here...is the user running apache called apache?
Code:
ps aux | grep httpd
to see what it is. sometimes it defaults to www-data
Also, the output file name should be as you posted it last, including the file name...there’s no path in the script you posted.
BUT. Displaying the gnuplot command on the second page won't execute it. The script run by the form on the first page (GNUGRAPH.sh) needs to run gnuplot, then display the png in the second page.
Looks like the same error, yes?
I’m still guessing here...is the user running apache called apache?
Code:
ps aux | grep httpd
to see what it is. sometimes it defaults to www-data
Also, the output file name should be as you posted it last, including the file name...there’s no path in the script you posted.
BUT. Displaying the gnuplot command on the second page won't execute it. The script run by the form on the first page (GNUGRAPH.sh) needs to run gnuplot, then display the png in the second page.
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