linux - 是否有任何复制更新替代命令？

Question

我目前使用的是 BusyBox v1.16.2，cp 命令不提供更新选项:

...
-u, --update
copy  only  when  the  SOURCE file is newer than the destination file
or when the destination file is missing

还有其他选择吗？

我会考虑使用 find --newer 参数，但我正在尝试弄清楚如何去做(经过几次尝试...)。

BusyBox v1.16.2 multi-call binary.

Usage: cp [OPTIONS] SOURCE DEST

Copy SOURCE to DEST, or multiple SOURCE(s) to DIRECTORY

Options:
    -a      Same as -dpR
    -R,-r   Recurse
    -d,-P   Preserve symlinks (default if -R)
    -L      Follow all symlinks
    -H      Follow symlinks on command line
    -p      Preserve file attributes if possible
    -f      Force overwrite
    -i      Prompt before overwrite
    -l,-s   Create (sym)links

Answer 1

test file1 -ot file2 && cp file2 file1