Ubuntu查看版本

使用命令：cat /proc/version 查看

$ cat /proc/version
Linux version 4.4.0-47-generic (buildd@lcy01-03) (gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.2) ) #68-Ubuntu SMP Wed Oct 26 19:39:52 UTC 2016

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使用命令：uname -a 查看

$ uname -a
Linux ip-172-31-9-166 4.4.0-47-generic #68-Ubuntu SMP Wed Oct 26 19:39:52 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

使用命令：lsb_release -a 查看

$ lsb_release -a
Linux ip-172-31-9-166 4.4.0-47-generic #68-Ubuntu SMP Wed Oct 26 19:39:52 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
ubuntu@ip-172-31-9-166:~/Download/php-5.6.28$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 16.04.1 LTS
Release:        16.04
Codename:       xenial