when i write the following two statements :
cp /dev/NULL /clocal/mqbrkrs/user/mqsiadm/sanjay/dspmq_temp
cat /dev/NULL > /clocal/mqbrkrs/user/mqsiadm/sanjay/dspmq_temp

its gives me errors like :
cp: /dev/NULL: A file or directory in the path name does not exist.
cat : /dev/NULL can't open the file.

I am using AIX 5.0,
Tell me if you have any answers or clue to solve this.

Is there any other way to make a file clear or make its size of 0 bytes?
ASAP.

Thanks.

You should use /dev/null , i.e all lowercase, but to empty a file, just use

Means if we have path of a file in a variable then we can use like this..
to clear the file / make the empty file.

FILEPATH=/clocal/mqbrkrs/user/mqsiadm/sanjay/dspmq_temp
> "$FILEPATH"


Thanks buddy !!