如何将源文件夹中的权限复制到目标？

Question

I have two bundles(directories) with identical hierarchy and files inside. I need to copy permissions of each item inside source bundle into files located in destinations bundle. I should not copy the files, only permissions.

Is it possible to do with shell script or should I go hard way and write app to do this?

Answer 1

It's not bash , but zsh is available in OS X, so you might try the following (I'm using % for the prompt to indicate when you are in zsh ; for> is a secondary prompt)

$ zsh
% for x in source/**/*; do
for> chmod $(stat -f "%p" $x) ${x/^source/dest}
for> done
% exit
$

The for loop iterates over all files under source , recursively. stat -f "%p" $x outputs the permissions for a file in the source directory, to use as the argument for the command that changes the permissions of the corresponding file (ie, replace "source" with "dest" in its name) in the destination directory.

(Actually, that loop would work in bash 4 as well, but as you may have noticed, OS X still ships with bash 3.2.)

---

As a standalone script named foo.zsh :

#!/bin/zsh
for x in source/**/*; do
  chmod $(stat -f "%p" $x) ${x/^source/dest}
done

$ chmod +x foo.zsh
$ ./foo.zsh

or simply

$ zsh foo.zsh