这个程序是为在服务器端提供在线听mp3歌曲的人减轻制作.m3u文件负担
而编造的, 它可以将指定目录下面的所有mp3歌曲的路径表示成为
合法的URL并保存成all.m3u文件
----------------------------------------------------------------------------
#!/usr/bin/perl -w
# print usage information if no argument offered by user.
if ($#ARGV < 0)
{
print <<END_USAGE
Usage: mkm3u top-URL dir-of-your-public-html dir-you-want-to-search
For example,
$ mkm3u http://mp3.your.net/~yourID/ /home/yourID/public-html/ mp3-directory
And the result will be saved as all.m3u in your home directory.
END_USAGE
;
die("End of usage\n");
}
# if the directory offered by user is not an absolute one, make it be.
if( $ARGV[2] !~ /^\// )
{
$pwd = `pwd`;
chop($pwd);
$ARGV[2] = $pwd."/".$ARGV[2];
}
# get the home dir of the user
$home=$ENV{"HOME"};
print "The home dir of yours is: $home\n";
open(M3U, ">>${home}\/all.m3u");
&process_dir("$ARGV[2]");
print "The result is kept as $home/all.m3u\n";
close(M3U);
sub process_dir
{
my($pwd,@subs,$count,$i);
$pwd = $_[0];
print "The present directory is $pwd\n";
@subs=<$pwd/*>;
$count=@subs;
for($i=0;$i<$count;$i++)
{
if($subs[$i] !~ /\/\.?$/)
{
if( -f $subs[$i] && $subs[$i] =~ /\.mp3$/i)
{
$subs[$i] =~ s/$ARGV[1]/$ARGV[0]/e;
print M3U "$subs[$i]\n";
}
elsif( -d $subs[$i] )
{
&process_dir("$subs[$i]");
}
}
}
}
----------------------------------------------------------------------
