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i want to read file and put line in variable for some editing.Then i have to write that line to another file.
Please help me how i can read line without omitting space which is changing my output...

I have ksh script reading file like
while read -r line
do
echo $line
sleep 1
#process_file $line
done<$file_nm

I want to write this line to another file after some manuplation.Put $line...