英文:
Brace expansion in zsh - how to concatenate two lists for file selection?
问题
在zsh中，可以使用表达式{nx..ny}，例如选择文件夹中从x到y的文件。
例如，{1..50}选择从1到50的项目、文件等。
如何将两个大括号扩展连接成一个？示例：我想选择{1..50}和{60..100}，使其输出为一个结果。
英文:
In zsh, one can create an expression of {nx..ny}, for example to select files x to y inside a folder.
For example, {1..50} selects items, files, etc. from 1 to 50.
How can I concatenate two two brace expansions into one?
Example: I would like to select {1..50} and {60..100} for one and the same output.
答案1
得分: 3
你可以嵌套大括号扩展，因此这将起作用：
> print {{1..50},{60..100}}
1 2 3 (很多数字) 49 50 60 61 (更多数字) 99 100
大括号扩展支持列表和序列，并可包含在字符串中：
> print -l file{A,B,WORD,{R..T}}.txt
fileA.txt
fileB.txt
fileWORD.txt
fileR.txt
fileS.txt
fileT.txt
请注意，大括号扩展不是通配模式。{n..m} 扩展将包括开始和结束值之间的每个值，无论是否存在该名称的文件。要在文件夹中查找文件，<-> 通配表达式通常效果更好：
> touch 2 3 55 89
> ls -l <1-50> <60-100>
-rw-r--r-- 1 me grp 0 Feb 18 06:52 2
-rw-r--r-- 1 me grp 0 Feb 18 06:52 3
-rw-r--r-- 1 me grp 0 Feb 18 06:52 89
英文:
You can nest brace expansions, so this will work:
> print {{1..50},{60..100}}
1 2 3 (lots of numbers) 49 50 60 61 (more numbers) 99 100
Brace expansions support lists as well as sequences, and can be included in strings:
> print -l file{A,B,WORD,{R..T}}.txt
fileA.txt
fileB.txt
fileWORD.txt
fileR.txt
fileS.txt
fileT.txt
Note that brace expansions are not glob patterns. The {n..m} expansion will include every value between the start and end values, regardless of whether a file exists by that name. For finding files in folders, the <-> glob expression will usually work better:
> touch 2 3 55 89
> ls -l <1-50> <60-100>
-rw-r--r-- 1 me grp 0 Feb 18 06:52 2
-rw-r--r-- 1 me grp 0 Feb 18 06:52 3
-rw-r--r-- 1 me grp 0 Feb 18 06:52 89
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