bash for 循环中的迭代顺序是否有保证？

Question

假设我在 bash 中有一个 for 循环，它看起来像这样：

for i in $MYDIR/*.jar
do
    # do something with files
done

是否保证迭代顺序，即循环是否始终以相同顺序处理文件？如果有保证，顺序是按字母顺序吗？

Answer 1

根据bash man page：

Pathname Expansion

After word splitting, unless the -f option has been set, bash scans each word for the characters *, ?, and [. If one of these characters appears, then the word is regarded as a pattern, and replaced with an alphabetically sorted list of filenames matching the pattern (see Pattern Matching below).

因此，由于 globbing 扩展规则，文件将按 字母顺序 处理（这取决于您的语言环境，请参阅评论）。

bash for 循环中的迭代顺序是否有保证？

Is the order of iteration in bash for loop guaranteed?

linux

bash

glob