Shell遍历文件夹删除匹配文件

#!/bin/sh    
list_alldir(){    
    for file2 in `ls -a $1`    
    do    
        if [ x"$file2" != x"." -a x"$file2" != x".." ];then    
            if [ -d "$1/$file2" ] && (echo $file2 | grep -qv '.svn');then   
                list_alldir "$1/$file2"
            elif (echo $1/$file2 | egrep -q '(de|el|fr|it)\.yml$');then
                echo "$1/$file2"
		rm $1/$file2
            fi   
        fi    
    done    
}

list_alldir $1