Commands for viewing hardware device information in linux and for viewing hardware commands in linux

Source: Internet
Author: User
Tags dmesg

Commands for viewing hardware device information in linux and for viewing hardware commands in linux


# Uname-a # view kernel/operating system/CPU Information
# Head-n 1/etc/issue # view the operating system version
# Cat/proc/cpuinfo # view CPU Information
# Hostname # view the computer name
# Lspci-TV # list all PCI devices
# Lsusb-TV # list all USB devices
# Lsmod # list loaded Kernel Modules
# Env # view environment variables


# Free-m # view memory usage and swap zone usage
# Df-h # view the usage of each partition
# Du-sh <Directory Name> # view the size of a specified directory
# Grep MemTotal/proc/meminfo # view total memory
# Grep MemFree/proc/meminfo # view the Amount of idle memory
# Uptime # view system running time, number of users, and load
# Cat/proc/loadavg # view system load

Disks and partitions

# Mount | column-t # view the status of the mounted Partition
# Fdisk-l # view all partitions
# Swapon-s # view all swap partitions
# Hdparm-I/dev/hda # view disk parameters (only applicable to IDE devices)
# Dmesg | grep IDE # view the IDE Device Detection Status at startup


# Ifconfig # view the attributes of all network interfaces
# Iptables-L # view firewall settings
# Route-n # view the route table
# Netstat-lntp # view all listening ports
# Netstat-antp # view all established connections
# Netstat-s # view network statistics


# Ps-ef # view all processes
# Top # display Process status in real time


# W # view active users
# Id <User Name> # view specified user information
# Last # view User Logon logs
# Cut-d:-f1/etc/passwd # view all users in the system
# Cut-d:-f1/etc/group # view all groups in the system
# Crontab-l # view the scheduled tasks of the current user


# Chkconfig -- list # list all system services
# Chkconfig -- list | grep on # list all started system services


# Rpm-qa # view all installed software packages

Common commands are as follows:
View the serial number of the motherboard: dmidecode | grep-I 'serial number'

Use the hardware detection program kuduz to detect the new hardware: service kudzu start (or restart)

View CPU information: cat/proc/cpuinfo [dmesg | grep-I 'cpu '] [dmidecode-t processor]

View memory information: cat/proc/meminfo [free-m] [vmstat]

View Board information: cat/proc/pci

View the video/sound card information: lspci | grep-I 'vga '[dmesg | grep-I 'vga']

View Nic information: dmesg | grep-I 'eth '[cat/etc/sysconfig/hwconf | grep-I eth] [lspci | grep-I 'eth']

View PCI information: lspci (more intuitive than cat/proc/pci)

View USB devices: cat/proc/bus/usb/devices

View the keyboard and mouse: cat/proc/bus/input/devices

View system hard disk information and usage: fdisk & disk-l & df

View interrupt requests of each device (IRQ): cat/proc/interrupts

View System Architecture: uname-

View and start the 32-bit or 64-bit Kernel Mode of the system: isalist-v [isainfo-v] [isainfo-B]

Dmidecode: displays hardware information, including bios, cpu, and memory.

Measure the refresh frequency of the current monitor:/usr/sbin/ffbconfig-rev \?

View System Configuration:/usr/platform/sun4u/sbin/prtdiag-v

View the patches applied in the current system: showrev-p

Displays the current running level: who-rH

View the current bind version: nslookup-class = chaos-q = txt version. bind

Dmesg | more view hardware information
Lspci displays peripheral information, such as usb and nic.
Lsnod view loaded drivers
Psrinfo-v view the type and speed of the current processor (clock speed)
Prtconf-v: print the current OBP version
Iostat-E view Hard Disk Physical information (vendor, RPM, Capacity)
Prtvtoc/dev/rdsk/c0t0d0s view disk geometric parameters and partition information
Df-F ufs-o I shows the number of used and unused I-nodes

For files in "/proc", you can use the File View command to browse its content. The file contains system-specific information:
CPU info host CPU Information
Dma host DMA channel information
Filesystems File System Information
Interrupts host interruption Information
Ioprots host I/O port number information
Meninfo host memory information
Version Linux memory Version

Note: proc-process information pseudo-filesystem process information disguise File System

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