一、linux CPU大小 cat /proc/cpuinfo |grep "model name" && cat /proc/cpuinfo |grep "physical id"
Note: Under Linux, you can see the detailed information of each cpu in /proc/cpuinfo. But for dual-core cpu, you will see two cpu in cpuinfo. It is often mistaken for two single-core CPUs. In fact, the physical processor ID should be used to distinguish single-core and dual-core. Physical Processor ID and can be found in cpuinfo or dmesg. Flags if the number of support Hyper-Threading Technology Description ht determined physical CPU can see the physical id value, compared with the same two, memory size
cat /proc/meminfo |grep MemTotal
*3. Hard disk size*** fdisk -l |grep Disk **
Four, uname -a # Linux system information command to view kernel/operating system/CPU information
Five, head -n 1 /etc/issue # View the operating system version, it is the number 1 not the letter L
Six, cat /proc/cpuinfo # Linux system information command to view CPU information
Seven, hostname # View the Linux system information command of the computer name
Eight, lspci -tv # List all PCI devices
Nine, lsusb -tv # List all the linux system information commands of USB devices
Ten, lsmod # List loaded kernel modules
Module Size Used by
autofs4 26513 3
sunrpc 260521 1
8021q 25317 0
garp 7152 1 8021q
stp 2218 1 garp
llc 5546 2 garp,stp
cpufreq_ondemand 10544 2
powernow_k8 18171 1
freq_table 4936 2 cpufreq_ondemand,powernow_k8
mperf 1557 1 powernow_k8
ip6t_REJECT 4628 2
nf_conntrack_ipv6 8748 2
nf_defrag_ipv6 11182 1 nf_conntrack_ipv6
xt_state 1492 2
nf_conntrack 79357 2 nf_conntrack_ipv6,xt_state
ip6table_filter 2889 1
ip6_tables 19458 1 ip6table_filter
ipv6 321422 47 ip6t_REJECT,nf_conntrack_ipv6,nf_defrag_ipv6
ppdev 8537 0
parport_pc 22690 0
parport 36209 2 ppdev,parport_pc
asus_atk0110 14216 0
sg 29350 0
microcode 112653 0
serio_raw 4594 0
k10temp 3609 0
edac_core 46581 0
edac_mce_amd 14705 0
snd_hda_codec_realtek 68136 1
snd_hda_intel 27823 2
snd_hda_codec 121518 2 snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 6652 1 snd_hda_codec
snd_seq 55759 1
snd_seq_device 6500 1 snd_seq
snd_pcm 86635 2 snd_hda_intel,snd_hda_codec
snd_timer 22411 3 snd_seq,snd_pcm
snd 69907 14 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_seq,snd_seq_device,snd_pcm,snd_timer
soundcore 7958 1 snd
snd_page_alloc 8470 2 snd_hda_intel,snd_pcm
i2c_piix4 12608 0
r8169 60023 0
mii 5376 1 r8169
shpchp 32778 0
ext4 363408 3
mbcache 8193 1 ext4
jbd2 90230 1 ext4
sr_mod 15177 0
cdrom 39085 1 sr_mod
sd_mod 38976 3
crc_t10dif 1541 1 sd_mod
ahci 41127 2
pata_acpi 3701 0
ata_generic 3837 0
pata_atiixp 4211 0
radeon 917108 0
ttm 80957 1 radeon
drm_kms_helper 40087 1 radeon
drm 265638 3 radeon,ttm,drm_kms_helper
i2c_algo_bit 5935 1 radeon
i2c_core 31084 5 i2c_piix4,radeon,drm_kms_helper,drm,i2c_algo_bit
dm_mirror 14133 0
dm_region_hash 12085 1 dm_mirror
dm_log 9930 2 dm_mirror,dm_region_hash
dm_mod 82839 11 dm_mirror,dm_log
Eleven, env # View environment variable resources
LESS_TERMCAP_mb=
HOSTNAME=localhost.localdomain
LESS_TERMCAP_md=
LESS_TERMCAP_me=
TERM=xterm
SHELL=/bin/bash
HISTSIZE=1000
NLS_LANG=AMERICAN_AMERICA.AL32UTF8
SSH_CLIENT=192.168.1.104 2465 22
QTDIR=/usr/lib64/qt-3.3
OLDPWD=/home
LESS_TERMCAP_ue=
QTINC=/usr/lib64/qt-3.3/include
SSH_TTY=/dev/pts/1
USER=root
LD_LIBRARY_PATH=/usr/lib/oracle/11.2/client64/lib:
LS_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=01;05;37;41:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.lz=01;31:*.xz=01;31:*.bz2=01;31:*.tbz=01;31:*.tbz2=01;31:*.bz=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.rar=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.axv=01;35:*.anx=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=01;36:*.au=01;36:*.flac=01;36:*.mid=01;36:*.midi=01;36:*.mka=01;36:*.mp3=01;36:*.mpc=01;36:*.ogg=01;36:*.ra=01;36:*.wav=01;36:*.axa=01;36:*.oga=01;36:*.spx=01;36:*.xspf=01;36:
ORACLE_BASE=/usr/lib/oracle/11.2
LESS_TERMCAP_us=
MAIL=/var/spool/mail/root
PATH=/usr/lib64/qt-3.3/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/erlang/bin:/home/rabbitmq_server-3.3.1/sbin/:/usr/lib/oracle/11.2/client64/bin:/root/bin
PWD=/
LANG=zh_CN.UTF-8
KDE_IS_PRELINKED=1
MODULEPATH=/usr/share/Modules/modulefiles:/etc/modulefiles
LOADEDMODULES=
KDEDIRS=/usr
SSH_ASKPASS=/usr/libexec/openssh/gnome-ssh-askpass
HISTCONTROL=ignoredups
SHLVL=1
12. free -m # View memory usage and swap area usage
total used free shared buffers cached
Mem: 3706 3534 171 0 31 3258
-/+ buffers/cache: 244 3461
Swap: 3711 0 3711
[root@localhost /]# 13. df -h # View the usage of each partition
[root@localhost /]# df -h
文件系统 容量 已用 可用 已用%% 挂载点
/dev/mapper/VolGroup-lv_root
50G 6.4G 41G 14% /
tmpfs 1.9G 72K 1.9G 1% /dev/shm
/dev/sda1 485M 38M 422M 9% /boot
/dev/mapper/VolGroup-lv_home
406G 2.8G 382G 1% /home
The following demonstrates not one by one
Fourteen, du -sh # View the size of the specified directory 15, grep MemTotal /proc/meminfo # View the total amount of memory 16, grep MemFree /proc/meminfo # View the amount of free memory 17, uptime # View the system running time, Number of users, load 18, cat /proc/loadavg # View system load disks and partitions 19, mount | column -t # View the status of mounted partitions 20, fdisk -l # View all partitions 21, swapon- s # View all swap partitions 22, hdparm -i /dev/hda # View disk parameters (only for IDE devices) 23, dmesg | grep IDE # View IDE device detection status at startup Network 24, ifconfig # View the attributes of all network interfaces 25, iptables -L # View firewall settings 26, route -n # View routing table 27, netstat -lntp # View all listening ports 28, netstat -antp # View All established connections 29, netstat -s # View network statistics Process 30, ps -ef # View all processes 31, top # Real-time display of process status User 32, w # View active user 30 Three, id # View specified user information 34, last # View user login log Thirty-five, cut -d: -f1 /etc/passwd # view all users of the system thirty-six, cut -d: -f1 /etc/group # view all groups thirty-seven of the system , crontab -l # view the current user's Scheduled task service 37, chkconfig --list # List all system services 38, chkconfig –list | grep on # List all started system service programs 39, rpm -qa # View all installed packages 4 10. cat /proc/cpuinfo: Linux system commands for viewing CPU related parameters 41. cat /proc/partitions: System information commands for viewing Linux hard disk and partition information 42. cat /proc/meminfo: Viewing Linux system memory Forty-three linux system commands for information , cat /proc/version: view version, similar to uname -r forty-four, cat /proc/ioports: view device io port forty-five, cat /proc/interrupts: view interrupt forty-four 6. cat /proc/pci: view the information of pci equipment 47. cat /proc/swaps: view the information of all swap partitions
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