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ntpd --version 的輸出

tag-icon • tag-icon 12.04
ntpd --version 的輸出

在我的 ubuntu 12.04 中

#ntpd --version
ntpd [email protected] Wed Mar  2 06:23:51 UTC 2016 (5)

上面的「(5)」代表什麼？

答案1

版本號碼後面的日期代表該版本的編譯時間。

我的猜測是，這(5)與協調世界時 (UTC) 值有關。也許是與 UTC 的時差，在本例中為 +5 小時？到目前為止我還沒有找到相關的文件。

似乎數字(5)代表 makefile 被執行的次數（thx@沙拉斯·曼查拉）。

版本樣式如下，只是為了證明我對UTC日期的猜測。

NTP uses A.B.C - style release numbers.

At the moment:

 A is 4, for ntp V4.
 B is the major release number.
 C is the minor release number.  Even numbers are 'stable' releases and
 odd numbers are "development" releases.

Following the release number may be the letter 'p' followed by a number.
This indicates a point (or patch) release.

Release candidates have -RC in the release number.

Here are some recent versions numbers as an example:

 4.2.2      A production release (from the ntp-stable repository)
 4.2.2p2    A production release (from the ntp-stable repository)
 4.2.3p12   A development release
 4.2.3p15-rc1   A release candidate for 4.2.4

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