如何在zsh中指定与file.txt匹配但不匹配file.x.txt的glob？

Question

比方说，我有一堆文件，其中一个文件有.txt作为扩展名，其他文件有.x.txt，其中x可以是任何。如何取出只有.txt扩展名的文件？

这里有一个重复的例子：

touch file.txt file.x.txt 
echo *.txt 
# file.txt file.x.txt 

Answer 1

% touch file.txt file.x.txt 
% echo [^.]#.txt 
file.txt 

从man zshexpn的FILENAME GENERATION部分：

[...] Matches any of the enclosed characters. Ranges of characters can be specified by separating two characters by a `-'. A `-' or `]' may be matched by including it as the first character in the 
      list. There are also several named classes of characters, in the form `[:name:]' with the following meanings. The first set use the macros provided by the operating system to test for the given 
      character combinations, including any modifications due to local language settings, see ctype(3): 

    ... 

    [^...] 
    [!...] Like [...], except that it matches any character which is not in the given set. 

    ... 

    x#  (Requires EXTENDED_GLOB to be set.) Matches zero or more occurrences of the pattern x. This operator has high precedence; `12#' is equivalent to `1(2#)', rather than `(12)#'. It is an error for 
      an unquoted `#' to follow something which cannot be repeated; this includes an empty string, a pattern already followed by `##', or parentheses when part of a KSH_GLOB pattern (for example, 
      `!(foo)#' is invalid and must be replaced by `*(!(foo))'). 

因此，这与.txt不包含其他.字符结尾的字符串相匹配。