I have three .wav files in my folder and I want to convert them into .mp3 with ffmpeg.
I wrote this bash script, but when I execute it, only the first one is converted to mp3.
What should I do to make script keep going through my files?
This is the script:
#!/bin/bash
find . -name '*.wav' | while read f; do
ffmpeg -i "$f" -ab 320k -ac 2 "${f%.*}.mp3"
done
Use the -nostdin flag to disable interactive mode,
ffmpeg -nostdin -i "$f" -ab 320k -ac 2 "${f%.*}.mp3"
or have ffmpeg read its input from the controlling terminal instead of stdin.
ffmpeg -i "$f" -ab 320k -ac 2 "${f%.*}.mp3" </dev/tty
See the -stdin/-nostdin flags in the ffmpeg documentation, as well as the FAQ How do I run ffmpeg as a background task?.
If you do need find (for looking in subdirectories or performing more advanced filtering), try this:
find ./ -name "*.wav" -exec sh -c 'ffmpeg -i "$1" -ab 320k -ac 2 "$(basename "$1" wav).mp3"' _ {} \;
Piping the output of find to the while loop has two drawbacks:
ffmpeg, for some reason unknown to me, will read from standard input, which interferes with the read command. This is easy to fix, by simply redirecting standard input from /dev/null, i.e. find ... | while read f; do ffmpeg ... < /dev/null; done.In any case, don't store commands in variable names and evaluate them using eval. It's dangerous and a bad habit to get into. Use a shell function if you really need to factor out the actual command line.
find ./ -name "2024071[78]_1[56]*.mp4" -exec sh -c 'ffmpeg -i "$1" -s wvga -vcodec libx264 "$(basename "$1"-red).mp4"' _ {} \;No reason for find, just use bash wildcard globbing
#!/bin/bash
for name in *.wav; do
ffmpeg -i "$name" -ab 320k -ac 2 "${name%.*}.mp3"
done
bash features, not a solution to the actual problem with ffmpeg. See Shammell Lee's answer.
#!/bin/bash FILES="/path/*.mp4" for f in $FILES do echo "------Processing $f VIDEO..." sudo ffmpeg -i "$f" -vn -ar 44100 -ac 2 -ab 192K -f mp3 "$f.mp3" echo "======Processed to $f.mp3" read -t 3 -p "Pause 3 sec ..." done . put it as sh script chmod +x this_script.sh and sudo ./this_script.sh