<?xml version=”1.0″ encoding=”UTF-8″?>
<player showDisplay=”yes” showPlaylist=”yes” autoStart=”no”> <song path=”http://music.u148.net/Kris_Kristofferson-holy_woman.mp3″ title=”Kris_Kristofferson-holy_woman” /> <song path=”http://music.u148.net/public_image_ltd-disappointed.mp3″ title=”public_image_ltd-disappointed” /> <song path=”http://music.u148.net/Muse-Uprising.mp3″ title=”Muse-Uprising” /> <song path=”http://music.u148.net/Orla_Fallon-She_Moved_Thro_the_Fair.mp3″ title=”Orla_Fallon-She_Moved_Thro_the_Fair” /> <song path=”http://music.u148.net/damon_and_naomi-E.T.A.mp3″ title=”damon_and_naomi-E.T.A.” /> <song path=”http://music.u148.net/England_Dan_And_John_Ford_Coley-Who_s_Lonely_Now.mp3″ title=”England_Dan_And_John_Ford_Coley-Who_s_Lonely_Now” /> <song path=”http://music.u148.net/the_avett_brothers-will_you_return.mp3″ title=”the_avett_brothers-will_you_return” /> <song path=”http://music.u148.net/richard_hawley-ashes_on_the_fire.mp3″ title=”richard_hawley-ashes_on_the_fire” /> <song path=”http://music.u148.net/avion_travel-abbassando.mp3″ title=”avion_travel-abbassando” /> <song path=”http://music.u148.net/Elisabeth_Kontomanou-I_gotta_right_to_sing_the_blues.mp3″ title=”Elisabeth_Kontomanou-I_gotta_right_to_sing_the_blues” /> <song path=”http://music.u148.net/Matthew_Barber-Easily_bruised.mp3″ title=”Matthew_Barber-Easily_bruised” /> <song path=”http://music.u148.net/Pearl_Jam-Just_Breathe.mp3″ title=”Pearl_Jam-Just_Breathe” /> <song path=”http://music.u148.net/Hope_Sandoval_&_The_Warm_Inventions-Wild_Roses.mp3″ title=”Hope_Sandoval_&_The_Warm_Inventions-Wild_Roses” /> <song path=”http://music.u148.net/u2-ill_go_crazy_if_i_dont_go_crazy_tonight.mp3″ title=”u2-ill_go_crazy_if_i_dont_go_crazy_tonight” /> <song path=”http://music.u148.net/Monsters_Of_Folk-Say_Please.mp3″ title=”Monsters_Of_Folk-Say_Please” /> <song path=”http://music.u148.net/Andres_Cepeda-Faltarán.mp3″ title=”Andres_Cepeda-Faltarán” /> <song path=”http://music.u148.net/Mark_Mulcahy-Be_Sure.mp3″ title=”Mark_Mulcahy-Be_Sure” /> <song path=”http://music.u148.net/Brett_Dennen-San Francisco.mp3″ title=”Brett_Dennen-San Francisco” /> <song path=”http://music.u148.net/Hnir_Pan-Piyka.mp3″ title=”Hnir_Pan-Piyka” /> <song path=”http://music.u148.net/KAYAH-EMBARCACAO.mp3″ title=”KAYAH-EMBARCACAO” /> <song path=”http://music.u148.net/Mosh_Ben_Ari-Bein_hazlilim.mp3″ title=”Mosh_Ben_Ari-Bein_hazlilim” /> <song path=”http://music.u148.net/the_black_crowes-appaloosa.mp3″ title=”the_black_crowes-appaloosa” /></player>
今天想去下载王小峰博客上的音乐，像往常一样，把http://www.wangxiaofeng.net/mp3player.xml拉回来，发现格式都乱了，像以上，只有2行（<player ×××>到</player>为一行）。
想过将http与mp3之间的内容提取出来，但不知道如何入手，最后想出先将它分行，再提出mp3地址
sed “s/<song/\n\r<song/g” mp3player.xml |cut -d\” -f2
输出,有首歌的歌名不是英文，乱码了，Mark_Mulcahy-Be_Sure.mp3
http://music.u148.net/Brett_Dennen-San Francisco.mp3
注意，如果是vi mp3player.xml,替换时，换行符则只有\r,而用sed时则是\n\r
:s/<song/\r<song/g
Windows下用Notepad++打开正则表达式进行替换，换行符是\n
单命令用
grep -oP ‘(?<=song path=”)[^”]*(?=” title=)’ mp3player.xml
更简单的
grep -o ‘http[^”]*\.mp3’ mp3player.xml