Common commands for viewing devices in linux

Linux commonly used to view the device command # uname-a # view the kernel/operating system/CPU information # head-n1/etc/issue # view the operating system version # cat/proc/cpuinfo # View CPU information # hostname # view the computer name www.2cto.com #...
Command # 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 www.2cto.com # 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 and swap zone usage # df-h # view the usage of each partition # du-sh <目录名> # View the size of a specified directory # grep MemTotal/proc/meminfo # view the total memory # grep MemFree/proc/meminfo # view the amount of idle memory # uptime # view the system running time, number of users, and load # cat/proc/loadavg # View system load disks and partitions # mount | column-t # view the status of mounted partitions # fdisk-l # View All partitions www.2cto.com # 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 network # ifconfig # view the attributes of all network interfaces # iptables-L # View firewall settings route-n # View route tables # netstat- lntp # View all listening ports # netstat-antp # View all established connections # netstat-s # View network statistics process www.2cto.com # ps-ef # View all processes # top # Real-Time display process status User # w # View active users # id <用户名> # Viewing specified user information # last # viewing user logon logs # cut-d:-f1/etc/passwd # viewing all users in the system # cut-d: -f1/etc/group # View all system groups # crontab-l # view the scheduled task service of the current user # chkconfig -- list # list all system Services # chkconfig -- list | grep on # list all started System Services