Introduction to commands for viewing hardware and system information in linux

[Root @ yufei ~] # Uname-a # linux system information command for viewing kernel/operating system/CPU information [root @ yufei ~] # Head-n1/etc/issue # view the operating system version, is the number 1 is not the letter L [root @ yufei ~] # Cat/proc/cpuin...

[Root @ yufei ~] # Uname-a # linux system information command for viewing kernel/operating system/CPU information

[Root @ yufei ~] # Head-n 1/etc/issue # view the operating system version. The value is 1, not L.

[Root @ yufei ~] # Cat/proc/cpuinfo # linux system information command for viewing CPU information

[Root @ yufei ~] # Hostname # linux system information command for viewing computer names

[Root @ yufei ~] # Lspci-TV # List all PCI devices

[Root @ yufei ~] # Lsusb-TV # linux system information commands for listing all USB devices

[Root @ yufei ~] # Lsmod # List loaded kernel modules

[Root @ yufei ~] # Env # View environment variable resources

[Root @ yufei ~] # Free-m # View memory usage and swap zone usage

[Root @ yufei ~] # Df-h # view the usage of each partition

[Root @ yufei ~] # Du-sh # view the size of a specified directory

[Root @ yufei ~] # Grep MemTotal/proc/meminfo # View total memory

[Root @ yufei ~] # Grep MemFree/proc/meminfo # view the amount of idle memory

[Root @ yufei ~] # Uptime # View system running time, number of users, and load

[Root @ yufei ~] # Cat/proc/loadavg # View system load disks and partitions

[Root @ yufei ~] # Mount | column-t # view the status of the mounted partition

[Root @ yufei ~] # Fdisk-l # View all partitions

[Root @ yufei ~] # Swapon-s # View all swap partitions

[Root @ yufei ~] # Hdparm-I/dev/hda # View disk parameters (only applicable to IDE devices)

[Root @ yufei ~] # Dmesg | grep IDE # view the network of the IDE device detection status at startup

[Root @ yufei ~] # Ifconfig # view the attributes of all network interfaces

[Root @ yufei ~] # Iptables-L # View firewall settings

[Root @ yufei ~] # Route-n # view the route table

[Root @ yufei ~] # Netstat-lntp # View all listening ports

[Root @ yufei ~] # Netstat-antp # View all established connections

[Root @ yufei ~] # Netstat-s # View network statistics process

[Root @ yufei ~] # Ps-ef # View all processes

[Root @ yufei ~] # Top # real-time display of process status users

[Root @ yufei ~] # W # View active users

[Root @ yufei ~] # Id # View specified user information

[Root @ yufei ~] # Last # View user logon logs

[Root @ yufei ~] # Cut-d:-f1/etc/passwd # View all users in the system

[Root @ yufei ~] # Cut-d:-f1/etc/group # View all groups in the system

[Root @ yufei ~] # Crontab-l # view the scheduled task service of the current user

[Root @ yufei ~] # Chkconfig-list # list all System Services

[Root @ yufei ~] # Chkconfig-list | grep on # list all started System service programs

[Root @ yufei ~] # Rpm-qa # View all installed software packages

[Root @ yufei ~] # Cat/proc/cpuinfo # linux system command for viewing CPU-related parameters

[Root @ yufei ~] # Cat/proc/partitions # command for viewing linux hard disk and partition information

[Root @ yufei ~] # Cat/proc/meminfo # linux system command for viewing linux system memory information

[Root @ yufei ~] # Cat/proc/version # view the version, similar to uname-r

[Root @ yufei ~] # Cat/proc/ioports # view the device's io port

[Root @ yufei ~] # Cat/proc/interrupts # View interruptions

[Root @ yufei ~] # Cat/proc/pci # View pci device information

[Root @ yufei ~] # Cat/proc/swaps # view information about all swap partitions

If the preceding command does not exist, you can use a similar command like yum provides "*/lspci" on RHEL6, and then install the corresponding software package.

Finally, I shared a script for viewing hardware information, which is very powerful and can contain parameters and use-h for detailed help.

As follows:

Download opsers share