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Shell Programming and Scripting

GNUPLOTING issue

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# 8  
Old 01-12-2015
ongoto

I tried all different ways. The location of the path is
Code:
/local/tools/wxpython/lib

Code:
setenv LD_LIBRARY_PATH $LD_LIBRARY_PATH:/local/tools/wxpython/lib

It still give me the same error
Code:
/local/tools/monitoring/gnuplot-new/bin/gnuplot: error while loading shared libraries: libwx_gtk2u_xrc-3.0.
so.0: cannot open shared object file: No such file or directory

# 9  
Old 01-12-2015
What operating system are you on?

Although LD_LIBRARY_PATH works on many system it does not work some (HP-UX and AIX for example)

Is anything defined in $LD_LIBRARY_PATH when you first login?

Have you considered just copying (or linking) this library into the standard lib folder (eg /usr/lib)?
# 10  
Old 01-12-2015
Its a RedHat Linux. No root access .

Does anybody know about "set loadpath " in gnuplot .

Can you give me an example
# 11  
Old 01-12-2015
I don't think LD_LIBRARY_PATH works that way. I don't think you can cram multiple paths into it. Just export LD_LIBRARY_PATH=/local/tools/wxpython/lib
# 12  
Old 01-12-2015
Quote:
Originally Posted by ajayram_arya
Does anybody know about "set loadpath " in gnuplot .

Can you give me an example
This just saves specifying a full path for you data files eg:

Code:
plot "/home/ajayram/sar_logs/29122014/datafile" using 1:3 title "used" with lines,\
"/home/ajayram/sar_logs/29122014/datafile" using 1:4 title "buffered" with lines,\
"/home/ajayram/sar_logs/29122014/datafile" using 1:5 title "cached" with lines,\
"/home/ajayram/sar_logs/29122014/datafile" using 1:6 title "free" with lines

Can become:

Code:
set loadpath '/home/ajayram/sar_logs/29122014'

plot "datafile" using 1:3 title "used" with lines,\
"datafile" using 1:4 title "buffered" with lines,\
"datafile" using 1:5 title "cached" with lines,\
"datafile" using 1:6 title "free" with lines

This User Gave Thanks to Chubler_XL For This Post:
ajayram_arya
# 13  
Old 01-12-2015
Does gnuplot scripts work under crontab
Last edited by ajayram_arya; 01-12-2015 at 07:27 PM..
# 14  
Old 01-12-2015
Yes I have run gnuplot from cron a number of times without issue.

Try writing a shell script /local/tools/run_plot as follows:
Code:
#!/bin/bash

export LD_LIBRARY_PATH=/local/tools/wxpython/lib

/local/tools/monitoring/plot_mem

where /local/tools/monitoring/plot_mem above is the script you posted in #1 eg:

Code:
#!/local/tools/monitoring/gnuplot-new/bin/gnuplot

set terminal png size 1024,768
...

Test the run_plot script from a terminal and ensure it works OK. Once you are happy with this you can setup your cron entry something like this:
Code:
30 23 * * * /local/tools/run_plot

The above translates to at 11:30PM every night run the script /local/tools/run_plot
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