About dot history file

[Willsz.net Support]

Hi folks,

I get strange dot history file in ~root directory. Something like this:

-rw-------   1 root  wheel   2840 Oct 31 17:20:18 2017 .history
-rw-------   1 root  wheel     13 Oct 28 18:35:52 2017 .history.16170268
-rw-------   1 root  wheel      0 Oct 28 18:35:52 2017 .history.16176977

What is that? I'am looking for in tcsh(1) just explain only .history
(without followed a number).

Thank You.


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