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This article mainly introduces the relevant knowledge of "Linux system information to check what common commands have". The editor shows you the operation process through an actual case. The operation method is simple, fast and practical. I hope this article "Linux system information to check what common commands have" can help you solve the problem.

System

# uname-a # View kernel / operating system / cpu information

# head-n 1 / etc/issue # View operating system version

# cat / proc/cpuinfo # View cpu information

# hostname # View computer name

# lspci-tv # list all pci devices

# lsusb-tv # list all usb devices

# lsmod # list the loaded kernel modules

# env # View environment variables

Resources

# free-m # View memory usage and swap area usage

# df-h # View the usage of each partition

# du-sh # View the size of the specified directory

# grep memtotal / proc/meminfo # check the total memory

# grep memfree / proc/meminfo # check the amount of free memory

# uptime # View system running time, number of users, and load

# cat / proc/loadavg # View system load

Disks and partitions

# mount | column-t # to view the status of attached partitions

# fdisk-l # View all partitions

# swapon-s # View all swap partitions

# hdparm-I / dev/hda # View disk parameters (for ide devices only)

# dmesg | grep ide # check the detection status of ide devices at startup

The network

# ifconfig # View the properties of all network interfaces

# iptables-l # View firewall settings

# route-n # View the routing table

# netstat-lntp # View all listening ports

# netstat-antp # View all established connections

# netstat-s # View network statistics

Process

# ps-ef # View all processes

# top # Real-time display of process status

User

# w # View active users

# id # View specified user information

# last # View user login log

# cut-d:-F1 / etc/passwd # View all users of the system

# cut-d:-F1 / etc/group # View all groups of the system

# crontab-l # View the current user's scheduled tasks

Service

# chkconfig-- list # list all system services

# chkconfig-- list | grep on # lists all started system services

Software package

# rpm-qa # View all installed packages

This is the end of the content about "check what are the common commands for Linux system information". Thank you for your reading. If you want to know more about the industry, you can follow the industry information channel. The editor will update different knowledge points for you every day.

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