| Re: redirecting output [message #40163] |
Fri, 16 July 2004 13:28 |
cedricl
Messages: 8
Registered: July 2004
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Junior Member |
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kl_tah@hotmail.com (KL) wrote in message news:<9af2bc14.0407151757.3142ab13@posting.google.com>...
> Hi,
> anyone know how I can redirect output from the idl command line to a file?
>
> eg. if idl understood unix style redirect, this might look something like
>
> IDL> print, structure.name > filename
You can call a function from the Unix prompt with:
somehost% IDL somefunction
I think that you should be able to redirect the output with a >.
Otherwise, use printf "somefunction, someparameters" | IDL >
output.txt (or something like that). If you don't follow the IDL rule
of one function per file, you can write your tasks in a batch file,
and have it run with
printf "@mybatch" | IDL
In the file mybatch, you can compile functions as you wish with .comp.
It's a little complicated, but I've researched alternatives and
haven't found any. BTW, this is also how I automate the queueing of
IDL commands to run in the background as separate IDL processes, using
at.
HTH,
Cedric
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| Re: redirecting output [message #40168 is a reply to message #40163] |
Fri, 16 July 2004 08:02  |
Craig Markwardt
Messages: 1869
Registered: November 1996
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Senior Member |
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kl_tah@hotmail.com (KL) writes:
> Hi,
> anyone know how I can redirect output from the idl command line to a file?
>
> eg. if idl understood unix style redirect, this might look something like
>
> IDL> print, structure.name > filename
Nigel had a good suggestion.
There's also the good ole' open-print-close approach, as in,
openw, unit, filename, /get_lun
print, unit, structure.name
...
free_lun, unit
Or, you could capture the output in a string and then save it later.
I use this all the time with my PRINTLOG routine,
printlog, log=log, structure.name
printlog, log=log, structure.value, format='(G9.2)'
...
and then you can do anything with the LOG array that you want. It's
just an array of strings, containing a transcript of what you printed
to it.
Good luck,
Craig
P.S. PRINTLOG is at:
http://cow.physics.wisc.edu/~craigm/idl/idl.html
--
------------------------------------------------------------ --------------
Craig B. Markwardt, Ph.D. EMAIL: craigmnet@REMOVEcow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
------------------------------------------------------------ --------------
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| Re: redirecting output [message #40170 is a reply to message #40168] |
Fri, 16 July 2004 02:20 |
Nigel Wade
Messages: 286
Registered: March 1998
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Senior Member |
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On Thu, 15 Jul 2004 18:57:38 -0700, KL wrote:
> Hi,
> anyone know how I can redirect output from the idl command line to a file?
>
> eg. if idl understood unix style redirect, this might look something like
>
> IDL> print, structure.name > filename
>
> thanks,
Depending on what you want to do, you might be able to use the JOURNAL
command.
E.g.
journal,'filename' ; opens a journal into filename
journal,structure.name ; writes strucure.name to the journal
journal ; closes the journal
However, journal has side-effects which might not meet your requirements.
--
Nigel Wade, System Administrator, Space Plasma Physics Group,
University of Leicester, Leicester, LE1 7RH, UK
E-mail : nmw@ion.le.ac.uk
Phone : +44 (0)116 2523548, Fax : +44 (0)116 2523555
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