3：檢視系統版本號及清理記憶體
阿新 • • 發佈：2018-11-15
1、清理前檢視記憶體的使用情況
#free -m
2、檢視記憶體大小
#cat /proc/meminfo | grep MemTotal
3、清理記憶體
echo 1 > /proc/sys/vm/drop_caches
echo 3 > /proc/sys/vm/drop_caches
4、檢視核心版本命令
（1）cat /proc/version
- # cat /proc/version
- Linux version 2.6.32-431.el6.x86_64 ([email protected]) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-4) (GCC) ) #1 SMP Fri Nov 22 03:15:09 UTC 2013
- [[email protected] local]# uname -a
- Linux host-10-10-7-134 2.6.32-431.el6.x86_64 #1 SMP Fri Nov 22 03:15:09 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
- [[email protected] nmon]# w
- 19:00:07 up 1 day, 1:40, 2 users, load average: 47.56, 13.90, 20.76
- USER TTY FROM [email protected] IDLE JCPU PCPU WHAT
- root pts/0 221.226.73.174 16:18 3:08 2:54m 0.00s tmadmin
- root pts/3 221.226.73.174 13:33 1.00s 0.10s 0.01s w