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On Thu, Jan 30, 2020 at 5:03 AM Hongyi Zhao <hongyi.zhao@gmail.com> wrote:

> Jeff Pohlmeyer <yetanothergeek@gmail.com> 于2020年1月30日周四 下午5:08写道:

> > "readlink -f" might be more common, and should have similar results.

> No correct, both of them are components of GNU coreutils:

Readlink was added to coreutils in January 2003.
Realpath was added to coreutils in December 2011.

So readlink is more likely to be available, even on ancient systems.

 - Jeff