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bash 内置命令的详细文档在哪里？

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bash 内置命令的详细文档在哪里？

compgen我想知道选项的含义。help compgen我可以通过帮助页面获取帮助。但它只显示选项列表。没有解释。

compgen：compgen [-abcdefgjksuv] [-o 选项] [-A 操作] [-G globpat] [-W 单词列表] [-F 功能] [-C 命令] [-X filterpat] [-P 前缀] [-S 后缀] [单词] 根据选项显示可能的补全。

Intended to be used from within a shell function generating possible
completions.  If the optional WORD argument is supplied, matches against
WORD are generated.

Exit Status:
Returns success unless an invalid option is supplied or an error occurs.

我特别想知道-abcdefgjksuv论点是如何起作用的。

答案1

在 bash 手册页的底部附近是 SHELL BUILTIN COMMANDS 部分，其中写道

compgen [option] [word]
          Generate  possible  completion  matches  for  word according to the
          options, which may be any option accepted by the  complete  builtin
          with the exception of -p and -r, and write the matches to the stan-
          dard output.  When using the -F or -C options,  the  various  shell
          variables  set  by  the  programmable  completion facilities, while
          available, will not have useful values.

          The matches will be generated in  the  same  way  as  if  the  pro-
          grammable  completion  code had generated them directly from a com-
          pletion specification with the same flags.  If word  is  specified,
          only those completions matching word will be displayed.

          The  return  value is true unless an invalid option is supplied, or
          no matches were generated.

其正下方是complete解释开关的内置命令。

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