HISTTIMEFORMAT
If this variable is set and not null, its value is used as a
format string for strftime(3) to print the time stamp associated
with each history entry displayed by the history builtin. If
this variable is set, time stamps are written to the history
file so they may be preserved across shell sessions. This uses
the history comment character to distinguish timestamps from
other history lines.
整数值是一个纪元时间 - 您可以使用date例如 ex. 将其转换为人类可读的时间。
$ date -d @1582696021
Wed Feb 26 00:47:01 EST 2020
它们是时间戳。从
man bash
整数值是一个纪元时间 - 您可以使用
date
例如 ex. 将其转换为人类可读的时间。