Bash readlines how to
Method 1 for read -r line do echo $line done < input_file.txt > out_file.txt Method 1 file=$(cat input_file.txt) for line in $file do echo $line done < input_file.txt > out_file.txt Links https://www.geeksforgeeks.org/bash-scripting-how-to-read-a-file-line-by-line/