查看基本信息
1. 查看CPU信息
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lscpuroot@admin:~# lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian Address sizes: 43 bits physical, 48 bits virtual CPU(s): 8 On-line CPU(s) list: 0-7 Thread(s) per core: 1 Core(s) per socket: 4 Socket(s): 2 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 158 Model name: Intel(R) Core(TM) i5-9300H CPU @ 2.40GHz Stepping: 10 CPU MHz: 2400.001 BogoMIPS: 4800.00 Virtualization: VT-x Hypervisor vendor: VMware Virtualization type: full L1d cache: 64 KiB L1i cache: 64 KiB L2 cache: 512 KiB L3 cache: 16 MiB NUMA node0 CPU(s): 0-7 Vulnerability Itlb multihit: KVM: Mitigation: VMX disabled Vulnerability L1tf: Mitigation; PTE Inversion; VMX flush not necessary, SMT disabled Vulnerability Mds: Vulnerable: Clear CPU buffers attempted, no microcode; SMT Host state unknown Vulnerability Meltdown: Mitigation; PTI Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp Vulnerability Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization Vulnerability Spectre v2: Mitigation; Full generic retpoline, IBPB conditional, IBRS_FW, STIBP disabled, RSB filling Vulnerability Srbds: Unknown: Dependent on hypervisor status Vulnerability Tsx async abort: Not affected 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 syscal l nx pdpe1gb rdtscp lm constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc cpuid pni pclmulqdq v mx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervis or lahf_lm abm 3dnowprefetch cpuid_fault invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi ept vpid ept_ ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpcid mpx rdseed adx smap clflushopt xsaveopt xsavec xsaves arat flush_l1d arch_capabilities -
cat /proc/cpuinforoot@admin:~# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 158 model name : Intel(R) Core(TM) i5-9300H CPU @ 2.40GHz stepping : 10 microcode : 0xde cpu MHz : 2400.001 cache size : 8192 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 4 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 22 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 pdpe1gb rdtscp lm constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc cpuid pni pclmulqdq vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch cpuid_fault invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpcid mpx rdseed adx smap clflushopt xsaveopt xsavec xsaves arat flush_l1d arch_capabilities vmx flags : vnmi invvpid ept_x_only ept_ad tsc_offset vtpr mtf ept vpid unrestricted_guest ple ept_mode_based_exec bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit srbds bogomips : 4800.00 clflush size : 64 cache_alignment : 64 address sizes : 43 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 158 model name : Intel(R) Core(TM) i5-9300H CPU @ 2.40GHz stepping : 10 microcode : 0xde cpu MHz : 2400.001 cache size : 8192 KB physical id : 0 siblings : 4 core id : 1 cpu cores : 4 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 22 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 pdpe1gb rdtscp lm constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc cpuid pni pclmulqdq vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch cpuid_fault invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpcid mpx rdseed adx smap clflushopt xsaveopt xsavec xsaves arat flush_l1d arch_capabilities vmx flags : vnmi invvpid ept_x_only ept_ad tsc_offset vtpr mtf ept vpid unrestricted_guest ple ept_mode_based_exec bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit srbds bogomips : 4800.00 clflush size : 64 cache_alignment : 64 address sizes : 43 bits physical, 48 bits virtual power management: processor : 2 vendor_id : GenuineIntel cpu family : 6 model : 158 model name : Intel(R) Core(TM) i5-9300H CPU @ 2.40GHz stepping : 10 microcode : 0xde cpu MHz : 2400.001 cache size : 8192 KB physical id : 0 siblings : 4 core id : 2 cpu cores : 4 apicid : 2 initial apicid : 2 fpu : yes fpu_exception : yes cpuid level : 22 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 pdpe1gb rdtscp lm constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc cpuid pni pclmulqdq vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch cpuid_fault invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpcid mpx rdseed adx smap clflushopt xsaveopt xsavec xsaves arat flush_l1d arch_capabilities vmx flags : vnmi invvpid ept_x_only ept_ad tsc_offset vtpr mtf ept vpid unrestricted_guest ple ept_mode_based_exec bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit srbds bogomips : 4800.00 clflush size : 64 cache_alignment : 64 address sizes : 43 bits physical, 48 bits virtual power management: processor : 3 vendor_id : GenuineIntel cpu family : 6 model : 158 model name : Intel(R) Core(TM) i5-9300H CPU @ 2.40GHz stepping : 10 microcode : 0xde cpu MHz : 2400.001 cache size : 8192 KB physical id : 0 siblings : 4 core id : 3 cpu cores : 4 apicid : 3 initial apicid : 3 fpu : yes fpu_exception : yes cpuid level : 22 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 pdpe1gb rdtscp lm constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc cpuid pni pclmulqdq vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch cpuid_fault invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpcid mpx rdseed adx smap clflushopt xsaveopt xsavec xsaves arat flush_l1d arch_capabilities vmx flags : vnmi invvpid ept_x_only ept_ad tsc_offset vtpr mtf ept vpid unrestricted_guest ple ept_mode_based_exec bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit srbds bogomips : 4800.00 clflush size : 64 cache_alignment : 64 address sizes : 43 bits physical, 48 bits virtual power management: processor : 4 vendor_id : GenuineIntel cpu family : 6 model : 158 model name : Intel(R) Core(TM) i5-9300H CPU @ 2.40GHz stepping : 10 microcode : 0xde cpu MHz : 2400.001 cache size : 8192 KB physical id : 1 siblings : 4 core id : 0 cpu cores : 4 apicid : 4 initial apicid : 4 fpu : yes fpu_exception : yes cpuid level : 22 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 pdpe1gb rdtscp lm constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc cpuid pni pclmulqdq vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch cpuid_fault invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpcid mpx rdseed adx smap clflushopt xsaveopt xsavec xsaves arat flush_l1d arch_capabilities vmx flags : vnmi invvpid ept_x_only ept_ad tsc_offset vtpr mtf ept vpid unrestricted_guest ple ept_mode_based_exec bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit srbds bogomips : 4800.00 clflush size : 64 cache_alignment : 64 address sizes : 43 bits physical, 48 bits virtual power management: processor : 5 vendor_id : GenuineIntel cpu family : 6 model : 158 model name : Intel(R) Core(TM) i5-9300H CPU @ 2.40GHz stepping : 10 microcode : 0xde cpu MHz : 2400.001 cache size : 8192 KB physical id : 1 siblings : 4 core id : 1 cpu cores : 4 apicid : 5 initial apicid : 5 fpu : yes fpu_exception : yes cpuid level : 22 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 pdpe1gb rdtscp lm constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc cpuid pni pclmulqdq vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch cpuid_fault invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpcid mpx rdseed adx smap clflushopt xsaveopt xsavec xsaves arat flush_l1d arch_capabilities vmx flags : vnmi invvpid ept_x_only ept_ad tsc_offset vtpr mtf ept vpid unrestricted_guest ple ept_mode_based_exec bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit srbds bogomips : 4800.00 clflush size : 64 cache_alignment : 64 address sizes : 43 bits physical, 48 bits virtual power management: processor : 6 vendor_id : GenuineIntel cpu family : 6 model : 158 model name : Intel(R) Core(TM) i5-9300H CPU @ 2.40GHz stepping : 10 microcode : 0xde cpu MHz : 2400.001 cache size : 8192 KB physical id : 1 siblings : 4 core id : 2 cpu cores : 4 apicid : 6 initial apicid : 6 fpu : yes fpu_exception : yes cpuid level : 22 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 pdpe1gb rdtscp lm constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc cpuid pni pclmulqdq vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch cpuid_fault invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpcid mpx rdseed adx smap clflushopt xsaveopt xsavec xsaves arat flush_l1d arch_capabilities vmx flags : vnmi invvpid ept_x_only ept_ad tsc_offset vtpr mtf ept vpid unrestricted_guest ple ept_mode_based_exec bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit srbds bogomips : 4800.00 clflush size : 64 cache_alignment : 64 address sizes : 43 bits physical, 48 bits virtual power management: processor : 7 vendor_id : GenuineIntel cpu family : 6 model : 158 model name : Intel(R) Core(TM) i5-9300H CPU @ 2.40GHz stepping : 10 microcode : 0xde cpu MHz : 2400.001 cache size : 8192 KB physical id : 1 siblings : 4 core id : 3 cpu cores : 4 apicid : 7 initial apicid : 7 fpu : yes fpu_exception : yes cpuid level : 22 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 pdpe1gb rdtscp lm constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc cpuid pni pclmulqdq vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch cpuid_fault invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpcid mpx rdseed adx smap clflushopt xsaveopt xsavec xsaves arat flush_l1d arch_capabilities vmx flags : vnmi invvpid ept_x_only ept_ad tsc_offset vtpr mtf ept vpid unrestricted_guest ple ept_mode_based_exec bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit srbds bogomips : 4800.00 clflush size : 64 cache_alignment : 64 address sizes : 43 bits physical, 48 bits virtual power management:
2. 查看内存信息
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freeroot@admin:~# free total used free shared buff/cache available Mem: 4278828 366000 3238852 1644 673976 3677944 Swap: 4194300 0 4194300 -
cat /proc/meminforoot@admin:~# cat /proc/meminfo MemTotal: 4278828 kB MemFree: 3238348 kB MemAvailable: 3677528 kB Buffers: 31348 kB Cached: 592412 kB SwapCached: 0 kB Active: 130412 kB Inactive: 609676 kB Active(anon): 1544 kB Inactive(anon): 118332 kB Active(file): 128868 kB Inactive(file): 491344 kB Unevictable: 19628 kB Mlocked: 19628 kB SwapTotal: 4194300 kB SwapFree: 4194300 kB Dirty: 28 kB Writeback: 0 kB AnonPages: 135984 kB Mapped: 149328 kB Shmem: 1644 kB KReclaimable: 50276 kB Slab: 122856 kB SReclaimable: 50276 kB SUnreclaim: 72580 kB KernelStack: 7376 kB PageTables: 2948 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 6333712 kB Committed_AS: 1013380 kB VmallocTotal: 34359738367 kB VmallocUsed: 59200 kB VmallocChunk: 0 kB Percpu: 82944 kB HardwareCorrupted: 0 kB AnonHugePages: 0 kB ShmemHugePages: 0 kB ShmemPmdMapped: 0 kB FileHugePages: 0 kB FilePmdMapped: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB Hugetlb: 0 kB DirectMap4k: 177984 kB DirectMap2M: 3270656 kB DirectMap1G: 2097152 kB
3. 查看硬盘及磁盘分区
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lsblkroot@admin:~# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop0 7:0 0 55.6M 1 loop /snap/core18/2538 loop1 7:1 0 55.6M 1 loop /snap/core18/2620 loop2 7:2 0 62M 1 loop /snap/core20/1593 loop3 7:3 0 63.2M 1 loop /snap/core20/1695 loop4 7:4 0 103M 1 loop /snap/lxd/23367 loop5 7:5 0 136.4M 1 loop /snap/lxd/23889 loop6 7:6 0 49.6M 1 loop /snap/snapd/17576 loop7 7:7 0 48M 1 loop /snap/snapd/17336 sda 8:0 0 100G 0 disk ├─sda1 8:1 0 1M 0 part ├─sda2 8:2 0 1G 0 part /boot └─sda3 8:3 0 99G 0 part └─ubuntu--vg-ubuntu--lv 253:0 0 49.5G 0 lvm / sr0 11:0 1 1024M 0 rom -
cat /proc/partitionsroot@admin:~# cat /proc/partitions major minor #blocks name 7 0 56896 loop0 7 1 56916 loop1 7 2 63448 loop2 7 3 64760 loop3 7 4 105476 loop4 7 5 139652 loop5 7 6 50832 loop6 7 7 49140 loop7 8 0 104857600 sda 8 1 1024 sda1 8 2 1048576 sda2 8 3 103805952 sda3 11 0 1048575 sr0 253 0 51904512 dm-0
4. 查看系统版本信息
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查看系统架构
archroot@ubuntu2004:~# arch x86_64 [root@centos8 ~]# arch x86_64 [root@rhel5 ~]# arch i686 -
查看内核版本
uname -r[root@centos8 ~]#uname -r 4.18.0-147.el8.x86_64 [root@centos7 ~]#uname -r 3.10.0-1062.el7.x86_64 [root@centos6 ~]# uname -r 2.6.32-754.el6.x86_64 [root@ubuntu1804 ~]#uname -r 4.15.0-29-generic -
查看操作系统发行版本
#CentOS8 查看发行版本 [root@centos8 ~]#cat /etc/redhat-release CentOS Linux release 8.1.1911 (Core) [root@centos8 ~]#cat /etc/os-release NAME="CentOS Linux" VERSION="8 (Core)" ID="centos" ID_LIKE="rhel fedora" VERSION_ID="8" PLATFORM_ID="platform:el8" PRETTY_NAME="CentOS Linux 8 (Core)" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:centos:centos:8" HOME_URL="https://www.centos.org/" BUG_REPORT_URL="https://bugs.centos.org/" CENTOS_MANTISBT_PROJECT="CentOS-8" CENTOS_MANTISBT_PROJECT_VERSION="8" REDHAT_SUPPORT_PRODUCT="centos" REDHAT_SUPPORT_PRODUCT_VERSION="8" [root@centos8 ~]#lsb_release -a LSB Version: :core-4.1-amd64:core-4.1-noarch Distributor ID: CentOS Description: CentOS Linux release 8.1.1911 (Core) Release: 8.1.1911 Codename: Core [root@centos8 ~]# #ubuntu查看发行版本 [root@ubuntu1804 ~]#cat /etc/os-release NAME="Ubuntu" VERSION="18.04.1 LTS (Bionic Beaver)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 18.04.1 LTS" VERSION_ID="18.04" HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy- policy" VERSION_CODENAME=bionic UBUNTU_CODENAME=bionic [root@ubuntu1804 ~]#cat /etc/issue Ubuntu 18.04.1 LTS \n \l [root@ubuntu1804 ~]#lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.1 LTS Release: 18.04 Codename: bionic [root@ubuntu1804 ~]#
lsb_release的用法
root@ubuntu2004:~# lsb_release -is
Ubuntu
root@ubuntu2004:~# lsb_release -cs
focal
root@ubuntu2004:~# lsb_release -rs
20.04
[root@centos7 ~]#lsb_release -is
CentOS
[root@centos7 ~]#lsb_release -cs
Core
[root@centos7 ~]#lsb_release -rs
7.9.2009