Linux "시스템 정보" 확인 명령어

Linux OS의 시스템 정보를 확인하는 명령어를 정리해 본다.

OS 버전 확인 방법도 여러 가지가 있다. 편한 걸 골라 쓰도록 하자! 또, 시스템 정보는 CPU/Memory 등 가끔 확인할 일이 있을 때 사용하면 유용하다~!! 

 

#1. 시스템 정보. 

 

• OS 정보 확인
  
  uname -a : 리눅스 커널정보(버전,명), 머신명, 프로세서 타입, 플랫폼, OS 정보를 표시한다.
  

  $ uname -a
  Linux XXXXXXXXXXXX 3.10.0-1127.10.1.el7.x86_64 #1 SMP Wed Jun 3 14:28:03 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

  
  cat /etc/issue : OS 버전정보 표시. (CentOS 7 기존 정보표시 X) 
  

  $ cat /etc/issue
  \S
  Kernel \r on an \m
  

  
  cat /etc/redhat-release : OS 버전 정보 표시 1. 
  

  $ cat /etc/redhat-release
  CentOS Linux release 7.8.2003 (Core)

  
  cat /etc/*release* : OS 버전정보 표시 2. 
  

  $ cat /etc/*release*
  CentOS Linux release 7.8.2003 (Core)
  Derived from Red Hat Enterprise Linux 7.8 (Source)
  NAME="CentOS Linux"
  VERSION="7 (Core)"
  ID="centos"
  ID_LIKE="rhel fedora"
  VERSION_ID="7"
  PRETTY_NAME="CentOS Linux 7 (Core)"
  ANSI_COLOR="0;31"
  CPE_NAME="cpe:/o:centos:centos:7"
  HOME_URL="https://www.centos.org/"
  BUG_REPORT_URL="https://bugs.centos.org/"
  
  CENTOS_MANTISBT_PROJECT="CentOS-7"
  CENTOS_MANTISBT_PROJECT_VERSION="7"
  REDHAT_SUPPORT_PRODUCT="centos"
  REDHAT_SUPPORT_PRODUCT_VERSION="7"
  
  CentOS Linux release 7.8.2003 (Core)
  CentOS Linux release 7.8.2003 (Core)
  cpe:/o:centos:centos:7
  

  
  
• 하드웨어 정보
  
  lscpu : CPU 관련 상세 정보 표시.
  

  $ lscpu
  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:             AuthenticAMD
  CPU family:            16
  Model:                 6
  Model name:            AMD Turion(tm) II Neo N54L Dual-Core Processor
  Stepping:              3
  CPU MHz:               800.000
  CPU max MHz:           2200.0000
  CPU min MHz:           800.0000
  BogoMIPS:              4392.93
  Virtualization:        AMD-V
  L1d cache:             64K
  L1i cache:             64K
  L2 cache:              1024K
  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 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc art rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt nodeid_msr hw_pstate retpoline_amd ibp_disable vmmcall npt lbrv svm_lock nrip_save

  
  dmidecode -t : 타입별 정보 표시. 
  

  $ dmidecode -t
  dmidecode: option requires an argument -- 't'
  Type number or keyword expected
  Valid type keywords are:
    bios
    system
    baseboard
    chassis
    processor
    memory
    cache
    connector
    slot
  

  
  dmidecode -t system: 시스템 정보 표시. 
  

  $ dmidecode -t system
  # dmidecode 3.2
  Getting SMBIOS data from sysfs.
  SMBIOS 2.6 present.
  
  Handle 0x0001, DMI type 1, 27 bytes
  System Information
          Manufacturer: HP
          Product Name: ProLiant MicroServer
          Version:
          Serial Number: XXXXXXXXXXXXXXX
          UUID: XXXXXX-X-1-00-XX
          Wake-up Type: Power Switch
          SKU Number: XXXX
          Family:
  
  Handle 0x001A, DMI type 32, 20 bytes
  System Boot Information
          Status: No errors detected
  

  
  dmidecode -t memory: 메모리 정보 표시. 
  

  $ dmidecode -t memory
  # dmidecode 3.2
  Getting SMBIOS data from sysfs.
  SMBIOS 2.6 present.
  
  Handle 0x0014, DMI type 16, 15 bytes
  Physical Memory Array
          Location: System Board Or Motherboard
          Use: System Memory
          Error Correction Type: Single-bit ECC
          Maximum Capacity: 8 GB
          Error Information Handle: Not Provided
          Number Of Devices: 2
  
  Handle 0x0016, DMI type 17, 28 bytes
  Memory Device
          Array Handle: 0x0014
          Error Information Handle: Not Provided
          Total Width: 72 bits
          Data Width: 64 bits
          Size: 4096 MB
          Form Factor: DIMM
          Set: None
          Locator: DIMM0
          Bank Locator: BANK0
          Type: Other
          Type Detail: Synchronous
          Speed: 1333 MT/s
          Manufacturer: Manufacturer00
          Serial Number: SerNum00
          Asset Tag: Not Specified
          Part Number: ModulePartNumber00
          Rank: Unknown
  
  Handle 0x0018, DMI type 17, 28 bytes
  Memory Device
          Array Handle: 0x0014
          Error Information Handle: Not Provided
          Total Width: Unknown
          Data Width: 64 bits
          Size: No Module Installed
          Form Factor: Other
          Set: None
          Locator: DIMM1
          Bank Locator: BANK1
          Type: DDR3
          Type Detail: None
          Speed: Unknown
          Manufacturer: 
          Serial Number: 
          Asset Tag: 
          Part Number: 
          Rank: Unknown
  

  
  dmidecode -t processor: 프로세서(CPU) 정보 표시. 
  

  $ dmidecode -t processor
  # dmidecode 3.2
  Getting SMBIOS data from sysfs.
  SMBIOS 2.6 present.
  
  Handle 0x0003, DMI type 4, 42 bytes
  Processor Information
          Socket Designation: CPU 1
          Type: Central Processor
          Family: Other
          Manufacturer: AMD
          ID: 63 0F 10 00 FF FB 8B 17
          Version: AMD Turion(tm) II Neo N54L Dual-Core Processor
          Voltage: 1.1 V
          External Clock: 200 MHz
          Max Speed: 2200 MHz
          Current Speed: 2200 MHz
          Status: Populated, Enabled
          Upgrade: Other
          L1 Cache Handle: 0x0004
          L2 Cache Handle: 0x0005
          L3 Cache Handle: 0x0006
          Serial Number: To Be Filled By O.E.M.
          Asset Tag: To Be Filled By O.E.M.
          Part Number: To Be Filled By O.E.M.
          Core Count: 2
          Core Enabled: 2
          Thread Count: 2
          Characteristics:
          64-bit capable
  

이상으로 linux 시스템 정보를 확인할 때 사용하는 명령어에 대해 알아보았다. 

도움이 되셨다면, 공감 or 댓글 하나 씨게 부탁드린다! ^^