我有一个图像文件夹，我试图将其复制到其自身的子文件夹中，以便我可以调整其中的图像大小。
它看起来像这样：
$ ls
100x100 image1.png
image2.png image3.png
image4.png pic1.jpg
我遇到的问题是，当我运行命令时cp -R ./. 100x100，出现错误，基本上表示我无法继续向自身添加 100x100 文件夹：
cp: 100x100/./100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/100x100/.DS_Store: name too long (not copied)
如何cp -R将文件复制到子文件夹而不同时复制子文件夹？
答案1
如果您的 shell 是zsh（如果您使用的是 macos）：
set -o extendedglob # best in ~/.zshrc
cp -- {^,}100x100
将扩展到：
cp -- ^100x100 100x100
也就是说，将所有文件复制100x100到100x100.
同时复制隐藏文件：
cp -- ^100x100(D) 100x100
仅复制常规文件（也包括目录、符号链接等）：
cp -- ^100x100(D.) 100x100
答案2
使用cp ./*.* ./100x100 没有该-R选项会将目录中的所有文件复制到100x100子目录中，而不将目录复制到其自身中。
该-R选项用于递归地将所有子目录复制到目标中，如果您不希望发生这种情况，则不应使用该选项。
man cp有关该命令的选项及其用途的更多信息，请参阅 参考资料。