Redirection creates empty file


 
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# 1  
Redirection creates empty file

I'm using a script that does some modifications to data on disc and updates the database. The script (perl) uses STDOUT so the results are printed to the screen. I don't have permissions to modify the script. I want to capture the results in a file so I can see if errors occurred and also keep track of where I am in the modifications. I've tried redirection and append with '> and >>' and I've tried 'tee and tee -a'. I don't get any errors, but the file remains empty - 0 file size. If I take out the redirection, the script runs fine, it's just that there are so many files modified that I can't see the entire output to note errors. Any ideas?
Code:
scriptname.pl -r /vol1/OPS -d DATATYPE -v VERSION -b 2005-04-05 -e 2005-04-06 | tee -a s4pa_delete_map.log

scriptname.pl -r /vol1/OPS -d DATATYPE -v VERSION -b 2005-04-06 -e 2005-04-07 >> s4pa_delete_map.log

Smilie

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Last edited by vbe; 09-18-2012 at 12:06 PM..
# 2  
Did you redirect stderr as well?
# 3  
But you have permission to read the script...
Are you sure it is not already redirecting elsewhere...
Look in the script...

RudiC has a good suggestion also...

And if you really want to suffer, use script:
Code:
script logallfromperlexec.script

execute your code...
then just exit

Now you should have all... Good reading...
This User Gave Thanks to vbe For This Post:
# 4  
@RudiC. Yes, same result, but I wasn't sure if I had done that part correctly so I was trying for a simple redirect.
Code:
scriptname.pl -r /vol1/OPS -d DATATYPE -v VERSION -b 2005-04-05 -e 2005-04-06 2>&1 | tee -a s4pa_delete_map.log

---------- Post updated at 10:30 AM ---------- Previous update was at 10:15 AM ----------

@vbe. I don't see anything in the script that has it redirecting somewhere else. I tried your suggestion and that creates a log. I'll just rename it to something logical when I'm done. Thank you!
script logallfromperlexec.script

Last edited by vbe; 09-18-2012 at 03:10 PM.. Reason: code tags please...
 

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