Bash shell教程[4] 查看Bash版本

O'Reilly

用户可以通过bash命令的--version参数或者环境变量$BASH_VERSION，查看本机的 Bash 版本。

1. 
   
2. [root@iZj6c2hyscvpl2m13lk2ekZ ~]# bash --version
   
3. GNU bash, version 4.2.46(2)-release (x86_64-redhat-linux-gnu)
   
4. Copyright (C) 2011 Free Software Foundation, Inc.
   
5. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
   
6. 
   
7. This is free software; you are free to change and redistribute it.
   
8. There is NO WARRANTY, to the extent permitted by law.
   
9. [root@iZj6c2hyscvpl2m13lk2ekZ ~]# echo $BASH_VERSION
   
10. 4.2.46(2)-release

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