Copier un CD de musique en MP3 ou Flac
$ cdparanoia -d /dev/hda -B (1)
$ lame --vbr-new --preset extreme a_file.wav a_file.mp3 (2)
$ for x in `ls *.mp3`; do lame --vbr-new --preset extreme $x "`basename ${x} .wav`.mp3"; done; (3)
$ find . *.wav -print0 | xargs -0 -n 1 -P $((`nproc` / 2)) -I {} lame --vbr-new --preset extreme {} {}.mp3 (4)
$ rename 's/\.wav\.mp3$/\.mp3/' *.mp3 (5)
$ flac --replay-gain --best *.wav (6)
$ find . *.wav -print0 | xargs -0 -n 1 -P `nproc` -I {} flac --replay-gain --best "{}" (7)| 1 | CD → *.WAV |
| 2 | WAV → MP3 |
| 3 | *.WAV → MP3 : See Find text in selected files for --print0 / -0 options ; backticks call a sub-command ; basename isolate main part of name from extension |
| 4 | *.WAV → MP3 in parallel : $(()) for math operations ; backticks nproc for CPU number |
| 5 | rename files in a second time |
| 6 | *.WAV → FLAC |
| 7 | *.WAV → FLAC in parallel |
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