'DU' command failing

Hi All,

I have a problem in executing the 'du' command in a tcl shell script.

My code is

#! <tcl-interpreter path>

exec du <directory_path> >& tempfile

I tried to redirect both the output and error to a file.
When i treid to execute the above program, i got an error "child
process exited abnormally". This is happening since the directory
contains the sub directories which does not have read permissions. I
am not able to redirect the error. Hence the script is terminating
abnormally.

After viewing through some older posts here, I have also tried by
redirecting the error to a shell as follows

set res [exec sh -c {du <directory_path>;exit 0} 2>@ stderr]

But this also didnt help me.

Can you please suggest me a solution.

It would be really useful for me if you can help me in this regard.


Thanks!
Anusha