View Linux Centos System Information kernel CPU system version disk partition network configuration process command

Linux System Info # uname-A # view kernel/OS/CPU Information # head-N1/etc/issue # View OS version # Cat/proc/Cpuinfo # View CPU Info # hostname # view computer name # LSPCI-TV # List all PCI devices # LSUSB-TV # list all USB devices # lsmod # list loaded kernel modules # env # View Environment Variables # Arch displays the processor architecture of the machine (1) # uname-m displays the processor architecture of the machine (2) # uname-R shows the kernel version being used # Dmidecode-q Display hardware system Part # Hdparm-i/dev/HDA lists the architecture characteristics of a disk # Hdparm-tt/dev/SDA performs a test read operation on disk # cat/proc/interrupts display Interrupt # cat/proc/meminfo Verifying memory usage # cat/proc/swaps shows which swap is used # cat/proc/version shows kernel versions # Cat/proc/net/Dev Display network adapter and statistics # Cat/proc/mounts displaying the loaded file system # LSPCI-TV Listing PCI devices # Lsusb-TV Display USB Device # date display system date # cal -Show 2007 Calendar Table # Date041217002007.00Set Date and time – Day of the month. Seconds # clock-W save time changes to BIOS system shutdown, restart, and logout # shutdown-H now shuts down the system (1) # init0Shut down the system (2) # Telinit0Shut down the system (3) # shutdown-H Hours:minutes &shut down the system at a predetermined time # shutdown-C Cancel closing the system on a predetermined time # shutdown-R Now Restart (1) # Reboot Restart (2# Logout Logout How to view Linux system resources # Free-m # View memory usage and swap usage # DF-H # View the usage of each partition # du-sh < directory name ># 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 How to view Linux disks and partitions # mount| Column-t # View attached partition status # 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 IDE device detection status on Startup View the command for the network configuration # ifconfig # View the 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 view Linux process # PS-EF # View All processes # top # Real-time display process Status View user's command # w # view active user # ID< user name ># View specified user information # Last # View user log in log # cut-D:-f1/etc/passwd # View system All users # cut-D:-f1/etc/Group # View system All groups # Crontab-L # View the current user's Scheduled Tasks View System Services Command # chkconfig–list # list all system Services # Chkconfig–list|grep on # List all startup system service Installer commands # RPM-QA # View all installed packages get help command #man< commands > #获得命令帮助

View Linux Centos System Information kernel CPU system version disk partition network configuration process command