- 查看cpu信息
查看cpu型号
cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c # 输出结果 2 Intel(R) Xeon(R) CPU E5-2637 v4 @ 3.50GHz
查看物理cpu数量
grep 'physical id' /proc/cpuinfo | sort | uniq | wc -l # 输出结果
1
- 查看每个物理cpu核数 ```bash cat /proc/cpuinfo |grep "cores"|uniq # 输出结果 2
查看cpu总核数
cat /proc/cpuinfo |grep 'processor'|wc -l # 输出结果
查看cpu主频
cat /proc/cpuinfo |grep MHz|uniq # 输出结果 cpu MHz : 3499.996
查看cpu详细信息
cat /proc/cpuinfo | head -20 # 输出结果 processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 79 model name : Intel(R) Xeon(R) CPU E5-2637 v4 @ 3.50GHz stepping : 1 microcode : 0xb000038 cpu MHz : 3499.996 cache size : 15360 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 20 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx rdtscp lm constant_tsc nopl xtopology nonstop_tsc eagerfpu pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpcid rdseed adx smap xsaveopt dtherm arat pln pts
查看cpu相关信息
lscpu # 输出结果 Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 2 On-line CPU(s) list: 0,1 Thread(s) per core: 1 Core(s) per socket: 2 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 79 Model name: Intel(R) Xeon(R) CPU E5-2637 v4 @ 3.50GHz Stepping: 1 CPU MHz: 3499.996 BogoMIPS: 6999.99 Hypervisor vendor: KVM Virtualization type: full L1d cache: 32K L1i cache: 32K L2 cache: 256K L3 cache: 15360K NUMA node0 CPU(s): 0,1 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx rdtscp lm constant_tsc nopl xtopology nonstop_tsc eagerfpu pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpcid rdseed adx smap xsaveopt dtherm arat pln pts
查看cpu运行模式
getconf LONG_BIT # 输出结果 64查看内存信息
查看内存使用情况
free -m // b, k, m, g
# 输出结果
total used free shared buff/cache available
Mem: 3785 135 3164 8 485 3386
Swap: 6555 0 6555
查看硬盘信息
查看挂接分区状态
fdisk -l | grep Disk # 输出结果 Disk /dev/sda: 68.7 GB, 68719476736 bytes, 134217728 sectors Disk label type: dos Disk identifier: 0x000af570 Disk /dev/mapper/rhel-root: 40.8 GB, 40831549440 bytes, 79749120 sectors Disk /dev/mapper/rhel-swap: 6874 MB, 6874464256 bytes, 13426688 sectors Disk /dev/mapper/rhel-home: 19.9 GB, 19935526912 bytes, 38936576 sectors
查看硬盘和分区
lsblk # 输出结果 NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 64G 0 disk ├─sda1 8:1 0 1G 0 part /boot └─sda2 8:2 0 63G 0 part ├─rhel-root 253:0 0 38G 0 lvm / ├─rhel-swap 253:1 0 6.4G 0 lvm [SWAP] └─rhel-home 253:2 0 18.6G 0 lvm /home sr0 11:0 1 1024M 0 rom
查看分区挂载状态
mount | column -t # 输出结果 sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime,seclabel) proc on /proc type proc (rw,nosuid,nodev,noexec,relatime) devtmpfs on /dev type devtmpfs (rw,nosuid,seclabel,size=1925916k,nr_inodes=481479,mode=755) securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime) tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,seclabel) devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,seclabel,gid=5,mode=620,ptmxmode=000)
查看硬盘使用情况
df -hT # 输出结果 Filesystem Type Size Used Avail Use% Mounted on /dev/mapper/rhel-root xfs 39G 2.3G 36G 6% / devtmpfs devtmpfs 1.9G 0 1.9G 0% /dev tmpfs tmpfs 1.9G 0 1.9G 0% /dev/shm tmpfs tmpfs 1.9G 9.0M 1.9G 1% /run tmpfs tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup /dev/sda1 xfs 1014M 145M 870M 15% /boot /dev/mapper/rhel-home xfs 19G 33M 19G 1% /home tmpfs tmpfs 379M 0 379M 0% /run/user/0查看网卡信息
查看网卡硬件信息
lspci | grep -i 'eth'
查看所有网络接口
ifconfig -a ip link show
查看某个网络的详细信息
ethtool eth0
