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手册页中“路径名扩展”和“大括号扩展”的详细信息在哪里？

tag-icon • tag-icon bash man set
手册页中“路径名扩展”和“大括号扩展”的详细信息在哪里？

我第一次尝试以冷静的心态浏览手册页，但在 2 分钟后我就感到沮丧。

$ man set
 nocaseglob
                      If set, bash matches filenames in a case-insensitive fashion  when  performing  pathname
                      expansion (see Pathname Expansion above)
...
-B      The  shell performs brace expansion (see Brace Expansion above).  This is on by default.

从该手册页中提取的几行显示“请参阅上面的路径名扩展”和“请参阅上面的大括号扩展”。但我搜索了整个文档，这不是这样的标题/子标题。我相信，它可以在理论上得到解释，但不能作为一个主题本身。我对吗？或者有什么地方可以获取有关这些的信息吗？

供参考。

$ bash -version
GNU bash, version 3.2.25(1)-release (x86_64-redhat-linux-gnu)

答案1

甚至 Bash 2.0 手册页也包含这样的部分：支撑扩张。来自 FreeBSD 的档案，联机帮助页bash (1)适用于 CentOS 3.9:

Brace Expansion
   Brace expansion is a mechanism by which arbitrary strings may be gener-
   ated.  This mechanism is similar to pathname expansion, but  the  file-
   names generated need not exist.  Patterns to be brace expanded take the
   form of an optional preamble, followed by a series  of  comma-separated
   strings  between  a pair of braces, followed by an optional postscript.
   The preamble is prefixed to each string contained  within  the  braces,
   and the postscript is then appended to each resulting string, expanding
   left to right.
...
GNU Bash-2.05b           2002 July 15                  BASH(1)

我想您只是需要进行更多搜索。

答案2

手册页上面写着搜索。您可以通过键入?( 向后搜索，然后按Pathname Expansion并点击N以在上一个方向进一步搜索，直到找到定义来完成此操作。

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