Forum OpenACS Development: Re: exec bash command pdftk within TCL page

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13: Re: exec bash command pdftk within TCL page (response to 1)
Posted by Dave Bauer on 08/16/11 07:32 PM
Aha you need

eval [list exec pdftk ${files} cat output $output_file]

not with { }

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14: Re: exec bash command pdftk within TCL page (response to 13)
Posted by Iuri Sampaio on 08/16/11 07:41 PM
lol, i am laughing loud with the 6 rules

http://mark.aufflick.com/blog/2005/11/10/six-stages-of-debugging

Nice read!!

The command
eval [list exec pdftk ${files} cat output $output_file]

didn't work either.
As soon as i figure that out I post here.
Thanks for the feedback!!!

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15: Re: exec bash command pdftk within TCL page (response to 14)
Posted by Iuri Sampaio on 08/16/11 08:28 PM
Good news! ns_eval solved the problem.

set command "pdftk $files cat output $output_file"

ns_eval exec $command

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16: Re: exec bash command pdftk within TCL page (response to 15)
Posted by Iuri Sampaio on 08/16/11 08:29 PM
Why is another issue that I will understand now.

Thanks Dave, Thanks Victor

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17: Re: exec bash command pdftk within TCL page (response to 15)
Posted by Jeff Rogers on 08/17/11 01:47 AM
You should use plain eval, not ns_eval.

ns_eval is used for reinitializing all the tcl interpreters in the server, something you generally don't want to be doing a lot of on a production server.