Hi,

Consider this:
--------
cat make_graphs
echo "Creating 2D-plots at each timestep"

for file in splot*.txt;
do echo "splot \"$file\" w lines" > temp.txt;
gnuplot plot_header.txt temp.txt
epstopdf gnuplot.eps
echo Making ${file%.txt}.pdf
mv gnuplot.pdf ${file%.txt}.pdf
done

echo
echo "Creating temperature profile"
gnuplot plot_commands.txt
epstopdf gnuplot.eps

echo
echo "Deleting temp-files"
rm temp.txt
rm gnuplot.eps
--------

I made that, but I'm not very experienced, so for instance
this line:

do echo "splot \"$file\" w lines" > temp.txt;

Is that the right method? The \" comes from my c-programming habits. It
looks like it works in bash too... Sometimes I see you guys discuss
something about:

What if $file has a space in it? Will it work too? I'm also writing to
temp.txt in each run... Perhaps I can avoid that?

I was pretty lucky about the:

echo Making ${file%.txt}.pdf

Because I remember I had seen something like that once... Could somebody
please remind me: If I wanted to remove the first part of the file,
(until the .txt part) how is it you do that? I forgot it...


Best regards
Martin Jørgensen

--
---------------------------------------------------------------------------
Home of Martin Jørgensen - http://www.martinjoergensen.dk

2006-12-06, 23:05(+01), Martin Jørgensen:
> Hi,
>
> Consider this:
> --------
> cat make_graphs
> echo "Creating 2D-plots at each timestep"
>
> for file in splot*.txt;
> do echo "splot \"$file\" w lines" > temp.txt;
> gnuplot plot_header.txt temp.txt
> epstopdf gnuplot.eps
> echo Making ${file%.txt}.pdf
> mv gnuplot.pdf ${file%.txt}.pdf
> done

for file in splot*.txt
do
printf 'split "%s" w lines\n' "$file" |
cat plot_header.txt - |
gnuplot &&
printf 'Making "%s"\n' "${file%.txt}pdf" &&
epstopdf --outfile="${file%txt}pdf" gnuplot.eps
done

[...]
> do echo "splot \"$file\" w lines" > temp.txt;
>
> Is that the right method? The \" comes from my c-programming habits. It
> looks like it works in bash too... Sometimes I see you guys discuss
> something about:

That's allright except for your usage of echo which is a
non-portable non-reliable commande.

> What if $file has a space in it? Will it work too?

If you qupte variables yes. Depending on the syntax of gnuplot,
you'll probably have troubles for files whose name contains ", \
or newline characters (because of the split "$file").

> I'm also writing to
> temp.txt in each run... Perhaps I can avoid that?

Yes.

> I was pretty lucky about the:
>
> echo Making ${file%.txt}.pdf

you need to quote any ${...}

echo "Making ${file%.txt}.pdf"

> Because I remember I had seen something like that once... Could somebody
> please remind me: If I wanted to remove the first part of the file,
> (until the .txt part) how is it you do that? I forgot it...

That would be in your shell manual. ${file##*.} would delete up
to the "."

--
Stéphane

Stephane CHAZELAS <this.address@is.invalid> writes:

> 2006-12-06, 23:05(+01), Martin Jørgensen:
>> Hi,
>>
>> Consider this:
>> --------
>> cat make_graphs
>> echo "Creating 2D-plots at each timestep"
>>
>> for file in splot*.txt;
>> do echo "splot \"$file\" w lines" > temp.txt;
>> gnuplot plot_header.txt temp.txt
>> epstopdf gnuplot.eps
>> echo Making ${file%.txt}.pdf
>> mv gnuplot.pdf ${file%.txt}.pdf
>> done
>
> for file in splot*.txt
> do
> printf 'split "%s" w lines\n' "$file" |
> cat plot_header.txt - |
> gnuplot &&
> printf 'Making "%s"\n' "${file%.txt}pdf" &&
> epstopdf --outfile="${file%txt}pdf" gnuplot.eps
> done
>
> [...]

Aha... Thanks. But the file-name is not inserted correctly (I assume you
meant splot instead of split?):

---
$ ./make_graphs
Creating 2D-plots at each timestep

gnuplot> splot "splot*.txt" w lines
^
can't read data file "splot*.txt"
line 0: util.c: No such file or directory


Creating temperature profile

gnuplot> splot "gnuplot.txt" with lines
^
can't read data file "gnuplot.txt"
"plot_commands.txt", line 15: util.c: No such file or directory

==> Warning: BoundingBox not found!

Deleting temp-files
---

So it obviously inserted file "splot*.txt" but I think the program can
only handle 1 file at a time: splot000.txt, splot001.txt, splot 002.txt,
etc. in order...

>> Is that the right method? The \" comes from my c-programming habits. It
>> looks like it works in bash too... Sometimes I see you guys discuss
>> something about:
>
> That's allright except for your usage of echo which is a
> non-portable non-reliable commande.

Thanks.

>> What if $file has a space in it? Will it work too?
>
> If you qupte variables yes. Depending on the syntax of gnuplot,
> you'll probably have troubles for files whose name contains ", \
> or newline characters (because of the split "$file").

Can a file contain a newline character? Really? Ok, but that is not a
problem though, because I choose the filenames myself. Only to learn I
bit more, I asked...

>> I'm also writing to
>> temp.txt in each run... Perhaps I can avoid that?
>
> Yes.
>
>> I was pretty lucky about the:
>>
>> echo Making ${file%.txt}.pdf
>
> you need to quote any ${...}

Ok.

> echo "Making ${file%.txt}.pdf"
>
>> Because I remember I had seen something like that once... Could somebody
>> please remind me: If I wanted to remove the first part of the file,
>> (until the .txt part) how is it you do that? I forgot it...
>
> That would be in your shell manual. ${file##*.} would delete up
> to the "."

Thanks...


Best regards
Martin Jørgensen

--
---------------------------------------------------------------------------
Home of Martin Jørgensen - http://www.martinjoergensen.dk