Linux viewing system Configuration common commands

System

# uname-a # view kernel/Os/cpu Info
# head-n 1/etc/issue # view OS version
# cat/proc/cpuinfo # View CPU Information
# hostname # view calculations Machine name
# LSPCI-TV # list all PCI devices
# LSUSB-TV # list all USB devices
# lsmod # list loaded kernel Modules
# env # View environment variable Resource
# free-m # View Memory usage Volume and swap Usage
# df-h # View each partition usage
# du-sh # View the size of the specified directory
# grep memtotal/proc/meminfo # View total Memory
# grep memfree/proc/ Meminfo # View Idle Memory
# uptime # View System uptime, number of users, load
# cat/proc/loadavg # View system load disk and partition
# Mount | column-t # View the status of the attached partition # 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 # view Startup I De device detection status Network
# ifconfig # View properties of all network Interfaces
# iptables-l # view firewall Settings
# route-n # View 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 process status User
# W # view active user
# ID # View specified user Information
# last # View user logon log
# cut-d:-f1/etc/passwd # View All users of the system

# cut-d:-f1/etc/group # View all system groups
# 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 programs
# rpm-qa # View all installed Packages

Linux viewing system Configuration common commands