「アーティスト」を grep すると結果が返されるのに、「artist:」を grep すると何も返されない理由を誰か説明できますか?
最初の結果:
MacBook-Pro:~ kjesso$ eyed3 ./Music/Deftones/2006\ -\ Saturday\ Night\ Wrist/Deftones\ -\ 02\ -\ Rapture.mp3
Deftones - 02 - Rapture.mp3 [ 5.26 MB ]
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Time: 03:25 MPEG1, Layer III [ ~213 kb/s @ 44100 Hz - Joint stereo ]
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ID3 v2.3:
title: Rapture
artist: Deftones
album: Saturday Night Wrist
album artist: None
recording date: 2006
track: 2 genre: Rock (id 17)
Publisher/label: Maverick
2 番目の結果:
MacBook-Pro:~ kjesso$ eyed3 ./Music/Deftones/2006\ -\ Saturday\ Night\ Wrist/Deftones\ -\ 02\ -\ Rapture.mp3 | grep "artist"
artist: Deftones
album artist: None
3 番目の結果:
MacBook-Pro:~ kjesso$ eyed3 ./Music/Deftones/2006\ -\ Saturday\ Night\ Wrist/Deftones\ -\ 02\ -\ Rapture.mp3 | grep "artist:"