리눅스 기본명령어 - OS버전 및 기본정보 체크

안녕하세요.

 

리눅스 기본명령어 중 OS버전 및 기본정보 체크에 대해 알아보겠습니다.

 

※ 리눅스 계열에 따라 명령어가 달라지거나 실행되지 않을 수 있습니다.

 

cat /etc/redhat-release : 리눅스 OS버전정보 (기본)

[root@localhost ~]# cat /etc/redhat-release
CentOS Linux release 7.6.1810 (Core)

[root@localhost ~]# cat /etc/system-release
CentOS Linux release 7.6.1810 (Core)

[root@localhost ~]# cat /etc/*-release
CentOS Linux release 7.6.1810 (Core)

 

uname -a : 리눅스 OS 버전정보 (시스템정보)

[root@localhost ~]# uname -a
Linux ruwa64-089.fmcity.com 3.10.0-957.12.2.el7.x86_64 #1 SMP Tue May 14 21:24:32 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

 

cat /proc/version : 리눅스 OS버전정보 (커널버전)

[root@localhost ~]# cat /proc/version
Linux version 3.10.0-957.27.2.el7.x86_64 (mockbuild@kbuilder.bsys.centos.org) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-36) (GCC) ) #1 SMP Mon Jul 29 17:46:05 UTC 2019

 

getconf LONG_BIT : 리눅스 OS bit 확인

[root@localhost ~]# getconf LONG_BIT
64

 

lscpu : 리눅스 하드웨어정보

[root@localhost ~]# 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:    1
Socket(s):             2
NUMA node(s):          1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 63
Model name:            Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz
Stepping:              2
CPU MHz:               2497.355
BogoMIPS:              4994.26
Hypervisor vendor:     Microsoft
Virtualization type:   full
L1d cache:             32K
L1i cache:             32K
L2 cache:              256K
L3 cache:              30720K
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 acpi mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl 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 intel_ppin ssbd ibrs ibpb stibp fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid xsaveopt md_clear spec_ctrl intel_stibp flush_l1d

 

dmidecode -t memory : 리눅스 메모리정보

[root@localhost ~]# dmidecode -t memory
# dmidecode 3.1
Getting SMBIOS data from sysfs.
SMBIOS 2.4 present.

Handle 0x1000, DMI type 16, 15 bytes
Physical Memory Array
        Location: Other
        Use: System Memory
        Error Correction Type: Multi-bit ECC
        Maximum Capacity: 4092 MB
        Error Information Handle: Not Provided
        Number Of Devices: 1

Handle 0x1100, DMI type 17, 21 bytes
Memory Device
        Array Handle: 0x1000
        Error Information Handle: 0x0000
        Total Width: 64 bits
        Data Width: 64 bits
        Size: 4092 MB
        Form Factor: DIMM
        Set: None
        Locator: DIMM 0
        Bank Locator: Not Specified
        Type: RAM
        Type Detail: None

 

dmidecode -t processor : 리눅스 프로세서(CPU)정보

[root@localhost ~]# dmidecode -t processor
# dmidecode 3.1
Getting SMBIOS data from sysfs.
SMBIOS 2.4 present.

Handle 0x0401, DMI type 4, 26 bytes
Processor Information
        Socket Designation: CPU 1
        Type: Central Processor
        Family: Other
        Manufacturer: Intel
        ID: F2 06 03 00 FF FB CB 17
        Version: Not Specified
        Voltage: Unknown
        External Clock: Unknown
        Max Speed: 2497 MHz
        Current Speed: 2497 MHz
        Status: Populated, Enabled
        Upgrade: Other

Handle 0x0402, DMI type 4, 26 bytes
Processor Information
        Socket Designation: CPU 2
        Type: Central Processor
        Family: Other
        Manufacturer: Intel
        ID: F2 06 03 00 FF FB CB 17
        Version: Not Specified
        Voltage: Unknown
        External Clock: Unknown
        Max Speed: 2497 MHz
        Current Speed: 2497 MHz
        Status: Populated, Enabled
        Upgrade: Other