Strange behaviour with perl i/o?

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# 1  
Question Strange behaviour with perl i/o?

Hi All,
I got a strange problem here. I have a perl script which is fetching data from a database table and writing a file with that data.

If i run that script from linux command line, the file it creates is a normal ascii text file without any binary character in it.But if i run it the same script through crontab, it is creating a data file with some binary characters appended in the data.

Did anybody faced this kind of situation before? Please help me if so?
Thanks in Advance!

Version Information:
Linux: Debian Kernel 2.6.26-1-amd64
Perl v5.10.0

# 2  
Are you using the same shell while running the script? Please check that and see

Devaraj Takhellambam
# 3  

Thanks for your response devtakh.

I checked the SHELL env variable and it says /bin/bash.
So it will be used while executing the script from command line and from cron, right?

# 4  
I'd check environmental variables under cron .
pay special attention to IFS , PATH , LD_LIBRARY , and PERL*
set in crontab :
min hour * * * env > /tmp/env
and examine /tmp/env
# 5  

You got it right mate!

I did what you had suggested and got the below:


So the shell is different while executing the script from cron.
Can you advise me how i can set it a particular shell so as the cron to use it
while executing a script?

# 6  
I am not sure that difference between bash and sh ( BTW check what really /bin/sh is ! It can be link ) will garble your output .
# 7  
Try giving /bin/bash scriptname while defining in the crontab file and see if that helps.
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