内容摘要：复制$cat/proc/cpuinfo|grep^proccessor|wc-l 48 $free-h totalusedfreesh

打通复制$ cat /proc/cpuinfo | grep ^proccessor | wc -l  48  $ free -h               total       used       free     shared    buffers     cached  Mem:           47G        45G       1.6G        20M       7.7G        25G  -/+ buffers/cache:        12G        35G  Swap:           0B         0B         0B  $ df  文件系统                          容量  已用  可用 已用% 挂载点  ......  /dev/sda1                          98G   14G   81G   15% /  /dev/vda1                         2.9T  1.8T  986G   65% /home  1.2.3.4.5.6.7.8.9.10.11.12.