sh compatible是什么意思 各种shell 各种 sh 的区别 介绍 cshell bash 区别 POSIX

 

 

 

 

 

 

shell 分为 bourne shell 和 C shell，

 

sh 一般是指bourne shell

 

bash 是bourneshell again

 

 

资料：

https://unix.stackexchange.com/questions/145522/what-does-it-mean-to-be-sh-compatible

https://en.wikipedia.org/wiki/Unix_shell

https://stackoverflow.com/questions/1780599/what-is-the-meaning-of-posix#:~:text=POSIX%20stands%20for%20Portable%20Operating,single%20standard%20version%20of%20UNIX.

https://en.wikipedia.org/wiki/Bourne_shell#C_shell