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# 1  
Old 12-27-2001
Data about system

hi all
i'm in trouble now. help me please.
the program is like below:
system( "tar cvf p.tar /data" );
excute this program and the p.tar is empty .
when i run this command in command line , p.tar is right.
so why?
please tell me , thank you .
# 2  
Old 12-27-2001

What flavor of UNIX are you using? See the man pages on the native system on tar

# 3  
Old 12-27-2001
no the manual not say about this problem

the environment is SCO UNIX
# 4  
Old 12-27-2001
how about harcoding the exact path to each file in your system() command, which should look like:

system("/sbin/tar cvf /users/shaik/p.tar /data");

And notic what the prompt says when the system() is being executed.

# 5  
Old 12-27-2001
hi, i have found a way to solve it.

yeah , i have try by that way .
but not effection.
i have found a way to solve this problem .
the modified program like bleow:

echo " #!/bin/ksh \n tar cvf p.tar /data > tar.sh";

but i still do not know why?
# 6  
Old 12-27-2001

Good you solved the problem. Probably some other version or program called tar is getting executed. Check your $PATH variable, in one of which path, there should be another tar located.

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