touch(1) on macOS
The text 4626babbdf0f, as Mac OS X 10.1.5, Mac OS X 10.1.4, Mac OS X 10.1.3, Mac OS X 10.1.2, Mac OS X 10.1.1, Mac OS X 10.1, Mac OS X 10.0.4, Mac OS X 10.0 shipped it.
change file access and modification times
Flags it lists
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-a -
-c -
-f -
-h -
-m -
-r -
-t