@echo off
for /f "tokens=1-2" %%i in (a.txt) do (
    wget "%%i" -O "%%j.mp3"
)
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IFS=\n'
for i in $(gawk '$2 {print "wget \""$1"\" -o \""$2"\""}' 'INPUTFILE');do echo $i;done
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while read l1 l2; do echo "wget \"$l1\" -o \"$l2\""; done<'INPUTFILE'
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#!/bin/bash
while read c1 c2; do
    wget "$c1" -O "$c2.mp3"
done < a.txt
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