查看一个文件夹是的挂载路径，比如查看opt文件夹挂载在哪：df /opt
root@iZ2zedo02x7n4nuc3lb4ueZ:~# df /opt Filesystem 1K-blocks Used Available Use% Mounted on /dev/vda1 41151808 6999740 32038640 18% /
查看linux是64位还是32位：getconf LONG_BIT
root@iZ2zedo02x7n4nuc3lb4ueZ:~# getconf LONG_BIT 64
查看Linux当前操作系统版本信息版本：cat /proc/version
root@iZ2zedo02x7n4nuc3lb4ueZ:~# cat /proc/version Linux version 4.15.0-23-generic (buildd@lgw01-amd64-055) (gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #25-Ubuntu SMP Wed May 23 18:02:16 UTC 2018 root@iZ2zedo02x7n4nuc3lb4ueZ:~#
查看Linux查看版本当前操作系统发行版信息：cat /etc/issue
root@iZ2zedo02x7n4nuc3lb4ueZ:~# cat /etc/issue Ubuntu 18.04 LTS \n \l
原文：https://www.cnblogs.com/kxm87/p/9556151.html