Git bash 在 Windows 上的正则表达式结果与 CentOS 上的终端不同

Question

查看以下cleanCustomer.sh文件

#!/bin/bash
customer=Reportçós
cleanedCustomer=${customer//[^a-zA-Z0-9 \-_.]/}
echo $cleanedCustomer

当我运行它在 Git Windows 11 上 Bash 它打印 Reports.
当我在终端的 CentOS 上运行它打印 Reportçós.

有人知道为什么 a-z 在 CentOS 中被解释为字母字符而不是在 Windows 中吗？
如何确保 CentOS 只考虑英文字符？

Answer 1

来自bash manual：

A pair of characters separated by a hyphen denotes a range expression; any character that falls between those two characters, inclusive, using the current locale’s collating sequence and character set, is matched. If the first character following the ‘[’ is a ‘!’ or a ‘^’ then any character not enclosed is matched. A ‘-’ may be matched by including it as the first or last character in the set.

您的 Git Bash 语言环境使用的规则不匹配 a-z 范围内的重音字符，而您的 CentOS 语言环境会。这可以通过使用一致的语言环境（如 C 进行整理）来解决。另外你的 - 放错地方了；它必须是第一个或最后一个，反斜杠需要用另一个反斜杠进行转义以匹配文字。

#!/bin/bash
LC_COLLATE=C
customer=Reportçós
cleanedCustomer=${customer//[^a-zA-Z0-9 \_.-]/}
printf "%s\n" "$cleanedCustomer"

Git bash 在 Windows 上的正则表达式结果与 CentOS 上的终端不同

Git bash on Windows different result than terminal on CentOS for regex

bash

git-bash

glob