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.