Linux查看监控系统/硬件资源

                                                                                                                                                                                                                                                                              CPU

实时CPU频率：

watch -n 1 grep "cpu MHz" /proc/cpuinfo

或

watch -n 1 cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq

CPU能够运行的最大频率：

cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq

CPU能够运行的最小频率：

cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq

查看核心总数：

cat /proc/cpuinfo

查看物理CPU的核数：

cat /proc/cpuinfo| grep "cpu cores"| uniq

查看逻辑CPU的核数：

cat /proc/cpuinfo| grep "processor"| wc -l

查看物理CPU个数：

cat /proc/cpuinfo| grep "physical id"| sort| uniq| wc –l

查看CPU型号：

cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c

                                                                                                                                                                                                                                                                              MEM

 查看内存型号、品牌、频率： 

dmidecode -t memory

                                                                                                                                                                                                                                                                               系统

 查看系统运行时间： 

cat /proc/uptime

 查看内核版本：

cat /proc/version

显示当前操作系统名称：

uname –a

查看CentOS版本：

rpm -q centos-release

或

cat /etc/redhat-release