bash script generated by ChatGPT to search lines in input_file that are not included in the directory_to_check and output results in output_file

search.sh

#!/bin/bash

input_file="input_list"        # Replace with the path to your input file
output_file="output_list"      # Replace with the desired output file

directory_to_check="path/to/hosts"  # Replace with the directory you want to check

# Create an empty output file or clear existing content
echo "" > "$output_file"

while IFS= read -r line || [ -n "$line" ]; do
    # Check if the line is contained in the directory using ripgrep
    echo -n "testing $line : "
    if rg -q "$line" "$directory_to_check"; then
        # If contained, do nothing
        echo "$line is included."
    else
        # If not contained, copy the line to the output file
        echo "$line is NOT included. Adding to list"
        echo "$line" >> "$output_file"
    fi
done < "$input_file"