Download files from URL specified in plain text files (one per file) and save with the same name of the origin file. https://askubuntu.com/questions/1196228/wget-from-file-and-save-as-acording-to-file-name

wget_custom.sh

#! /usr/bin/env bash

# usage: bash wget_custom.sh
#   Put this file in the same directory of `frm` files with unique URL to download.
#   Downloades file has the same name of `frm` file but the extension is `txt`.
#   Answer to AskUbuntu question: https://askubuntu.com/questions/1196228/wget-from-file-and-save-as-acording-to-file-name

SAVEIFS=$IFS
IFS=$'\n'
files=$(ls -1 *.frm)
for file in ${files[@]}; do
  downloaded_file=$(echo $file | sed 's/\.frm/.txt/')
  url_file=$(more $file)
  wget $url_file -O $downloaded_file
done
IFS=$SAVEIFS