Shell Programming and Scripting

i have a file in unix having data like
cat
dog
(having spaces in the beginning)
when i read it in a shell script
cat file_name |while read line
do
echo $line
done
it will print
cat
dog
spaces at the beginning are removed....

i dont want these spaces to be removed...it shud print like
cat
dog

is there anyway out ?
Thanks in advance

By default, the internal field separator IFS is set to space, linefeed, and tab. By changing that in your script, you can maintain the spaces. Try this

Code:

#!/bin/ksh

export IFS=$(echo "\n\t")

cat file_name | while read line
do
    echo $line
done

I'm sure there are better ways to reset IFS but I've been doing it this way for so long...I have forgotten why.

thnx a lot