I am creating a clip from an audio file .FLAC with a start and end time, here is my command.
.FLAC
start
end
command
ffmpeg -i /audio
use option -y with your command
-y
ffmpeg -y -i /audio/your_file_name.flac -t 51 -ss 69 /clips/your_clip_name.mp3 2>&1 >> /ffmpegLogs.log