About Bash4

ABS Guide 的作者 Mendel Cooper 在 6.0.05 版中对 Bash4 有如下 Editorial comment:

Associative arrays? Coprocesses? Whatever happened to the lean and mean Bash we have come to know and love? Could it be suffering from (horrors!) "feature creep"? Or perhaps even Korn shell envy?

Note to Chet Ramey: Please add only essential features in future Bash releases -- perhaps for-each loops and support for multi-dimensional arrays. Most Bash users won't need, won't use, and likely won't greatly appreciate complex "features" like built-in debuggers, Perl interfaces, and bolt-on rocket boosters.

俺也感觉 bash4 的开发激进了些, 功能不稳定, feature 太花哨, 不几天的功夫 patch 已经出 17 个了. :(