怎么批量设置文件和目录权限
如何批量设置文件和目录权限
现在的所有目录都是775，文件都是664
要全部改成目录755，文件改成644
要求所有子目录和子目录中的文件全改掉。
如何用一两句命令实现啊
------解决方案--------------------
cd /path/to/director/;
find . -type f -exec chmod 644 {} \;
find . -type d -exec chmod 755 {} \;
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