HP-UX eval basic question


 
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Operating Systems HP-UX HP-UX eval basic question
# 1  
Old 09-16-2008
HP-UX eval basic question

Hi,

I tried using the following on a HP-UX box in a ksh script.

export FILE=test_data_'$DATESTAMP*'.txt'
FILENAME= `eval ls -t $FILE`

The 'file' name comprises of DateStamp and TimeStamp, so I am using a wild card search to get all the files with the current date.
I then want to see all the files available, and pick the latest one, so I am using 'eval'.
But it dosent seem to work on this box.

When I try to echo the FILENAME I get a blank line.

Am I missing something?

Thanks.
# 2  
Old 09-16-2008
Try
Code:
export FILE="test_data_${DATESTAMP}*.txt"

# 3  
Old 09-17-2008
That did not solve the problem.
I still get a blank line, when I try to echo the Filename.
# 4  
Old 09-17-2008
Thanks My problem got solved.
I used:

FILENAME= `eval ls -t test_data_$DATESTAMP*`

instead of

FILENAME= `eval ls -t $FILE`
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