I have a ksh script which gathers data from a file. I need to find a way to direct the output to a new file. The code looks something like this:

 
DUP_FILE=`touch /export/.../.../dup_social_$1`
 
while (($# > 0 ))
do
# Make sure the file exists
if [[ ! -f $1 ]]
then
print "$1: does not exist or not accessible \n"
else
#open the file for input
exec 0<$1
while read LINE
do
# Store Social Security numbers to SOCIAL1 and SOCIAL2
SOCIAL1=`echo "$LINE" | awk '{ print substr ($0, 105, 9) }'`
SOCIAL2=`echo "$LINE" | awk '{ print substr ($0, 212, 9) }'`
if [ "$SOCIAL1" = "$SOCIAL2" ] ; then
print "$LINE" >> ${DUP_FILE}
fi
...
...

DUP_FILE=`touch /export/.../.../dup_social_$1`

Thanks for the reply. I solved this problem with the following:

DUP_FILE="/export/.../.../dup_social_$1"
 
while (($# > 0 ))
do
# Make sure the file exists
if [[ ! -f $1 ]]
then
print "$1: does not exist or not accessible \n"
else
#open the file for input
exec 3>$DUP_FILE
exec 0<$1
while read LINE
do
# Store Social Security numbers to SOCIAL1 and SOCIAL2
SOCIAL1=`echo "$LINE" | awk '{ print substr ($0, 105, 9) }'`
SOCIAL2=`echo "$LINE" | awk '{ print substr ($0, 212, 9) }'`
if [ "$SOCIAL1" = "$SOCIAL2" ] ; then
print -u3 "$LINE" 
fi
...
...
# Close the open file descriptor 3
exec 3>&-

The value of ${DUP_FILE} will be blank.

Try:

DUP_FILE="/export/.../.../dup_social_$1"

exec 3>$DUP_FILE exec 0<$1 exec 3>&-

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