Re: Why usage function exit with code 129?

在 2012年1月6日 下午4:11，Nguyen Thai Ngoc Duy [off-list ref] 写道：

2012/1/6 徐迪 [off-list ref]:

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[1] http://tldp.org/LDP/abs/html/exitcodes.html

No it does not mean terminated by signals.
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In that case, why not just use another code instead of the code that
leads misunderstanding? I mean, as far as I know, exit code between
129 and 255 are used to indicate the program terminated by signal. So
that usage function can only exit with code between 1 and 127. Am I
wrong?

Because that code has been there too long (since 2005) any probably
all git commands, including plumbing ones, rely on it. Changing it now
may break existing scripts.
--
Duy

Ok, that sounds logical.