实现循环音视频转换

#!/bin/bash
indexForSave = wav
for file in /home/kaldi/examples/*
do
   if [ -d "$file" ]                     
   then
      echo "$file is a directory"
   elif [ -f "$file" ]
   then
      echo "$file is a file"
	  #echo ${fileForSave}${file%.*}${indexForSave}
	  ffmpeg -i ${file}  ${file%.*}".wav"
   fi
done

参考：http://blog.youkuaiyun.com/bingqingsuimeng/article/details/51441794

http://www.jb51.net/article/56563.htm

http://learn.tsinghua.edu.cn/kejian/data/77130/138627/html-chunk/ch31s02.html

http://www.jb51.net/article/44207.htm

http://blog.youkuaiyun.com/bad_good_man/article/details/49590201