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<== Date ==> <== Thread ==>

Subject: RE: iocsh and redirection
From: "Heesterman, Peter J" <Peter.Heesterman@ccfe.ac.uk>
To: "John Dobbins" <john.dobbins@cornell.edu>, "EPICS Tech-Talk" <tech-talk@aps.anl.gov>
Date: Fri, 6 Dec 2013 19:25:54 -0000
Hi John,

I am able to reproduce anomalous behaviour, using SoftIoc, on my Windows PC by:
epics>1>help.txt
epics>help

help.txt is created, but empty.
To the screen, I get:
 ": Invalid argument

Cheers,

Peter.

-----Original Message-----
From: tech-talk-bounces@aps.anl.gov [mailto:tech-talk-bounces@aps.anl.gov] On Behalf Of John Dobbins
Sent: 06 December 2013 17:24
To: EPICS Tech-Talk
Subject: iocsh and redirection

All,

I was experimenting with redirection in the iocsh and the results were not as I expected.

I have used commands like

dbl>records.txt

in the past and they work fine.

So I created an example IOC (makeBaseApp.pl -t example) and tried:

epics> 1>test.txt
epics> dbl

and got:

Can't open "": No such file or directory.

the file test.txt was created but was empty.

Running the same test on another computer might produce

epics> 1>test.txt
epics> dbl
Can't open "ØîØð8": No such file or directory.

again test.txt is created but empty.


And interestingly on a third computer

epics> 1>test.txt
epics> dbl

will create test.txt but will output a list of records to a file named "èþ8Þ"



BTW, I was playing with this because I wanted to redirect stderr to a 
file. The App Developer Guide mentions epicsStdioRedirect and I was 
wondering what it would take to get redirection to work in any specific IOC.



Regards and thanks,

John Dobbins
Cornell University





References:
iocsh and redirection John Dobbins

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