Shell Script to Get line by line input from file

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It is the shell script:

#!/bin/sh
while read line
do
echo $line
done <filename

Here filename is the name of file to be given as input to the script and “line” is a variable. The “read” keyword can be used to read a line from file. To execute this file successfully, you need to have a file named “filename” in the same folder having some text written in it.

Note: Change the permissions of this shell script.