递归xattr严重失败

Question

我一直在试图找到一种方法来递归地删除某些文件的所有xattr，但是，似乎没有一个以往方法不再工作了；可能也有一个新引入的错误？

$ xattr -rc .
option -r not recognized

$ xattr -c .
option -c not recognized

..and，现在是大结局！

$ find . -exec xattr -l {} \;
com.apple.FinderInfo:
Traceback (most recent call last):
  File "/usr/local/bin/xattr", line 11, in <module>
    sys.exit(main())
  File "/Library/Python/2.7/site-packages/xattr/tool.py", line 200, in main
    print(_dump(attr_value))
  File "/Library/Python/2.7/site-packages/xattr/tool.py", line 77, in _dump
    printable = s.translate(_FILTER)
TypeError: character mapping must return integer, None or unicode

哦，看，它在淤泥中找到了一个xattr .知道如何、什么或谁如此严重地破坏了xattr工具是很有趣的。我只需要递归地删除扩展属性，真的！

Answer 1

您似乎在/usr/local/bin/xattr中安装了一个非标准的xattr命令( macOS附带的标准命令是/usr/bin/xattr)。这些都是Python错误，所以可能是这一个？无论如何，它不使用与标准语法相同的语法，因此安装它会造成混乱；我建议将其删除或将其重命名为不同的语法；否则，可能会破坏任何尝试使用xattr的脚本(您的脚本或系统脚本)。

Answer 2

这也发生在我身上。我相信是因为我的$PATH

/usr/local/bin:/usr/bin

我的user local bin先于我的system usr/bin。

多亏了这些帖子，我发现了这个问题。

xattr安装在两个地点。

显示目标是内置的、函数、别名还是外部可执行文件。(来源)/

type -a xattr
# xattr is /usr/local/bin/xattr
# xattr is /usr/bin/xattr

当然，它们是不同的。

/usr/local/bin/xattr -h
usage: xattr [-slz] file [file ...]
       xattr -p [-slz] attr_name file [file ...]
       xattr -w [-sz] attr_name attr_value file [file ...]
       xattr -d [-s] attr_name file [file ...]

The first form lists the names of all xattrs on the given file(s).
The second form (-p) prints the value of the xattr attr_name.
The third form (-w) sets the value of the xattr attr_name to attr_value.
The fourth form (-d) deletes the xattr attr_name.

options:
  -h: print this help
  -s: act on symbolic links themselves rather than their targets
  -l: print long format (attr_name: attr_value)
  -z: compress or decompress (if compressed) attribute value in zip format

VS.

/usr/bin/xattr -h
usage: xattr [-l] [-r] [-s] [-v] [-x] file [file ...]
       xattr -p [-l] [-r] [-s] [-v] [-x] attr_name file [file ...]
       xattr -w [-r] [-s] [-x] attr_name attr_value file [file ...]
       xattr -d [-r] [-s] attr_name file [file ...]
       xattr -c [-r] [-s] file [file ...]

The first form lists the names of all xattrs on the given file(s).
The second form (-p) prints the value of the xattr attr_name.
The third form (-w) sets the value of the xattr attr_name to the string attr_value.
The fourth form (-d) deletes the xattr attr_name.
The fifth form (-c) deletes (clears) all xattrs.

options:
  -h: print this help
  -l: print long format (attr_name: attr_value and hex output has offsets and
      ascii representation)
  -r: act recursively
  -s: act on the symbolic link itself rather than what the link points to
  -v: also print filename (automatic with -r and with multiple files)
  -x: attr_value is represented as a hex string for input and output

因此，如果您出于任何原因都想保留这两种情况，那么您可以这样显式地调用它们：

/usr/bin/xattr -lr ~

/usr/local/bin/xattr -l ~