CentOS system management commands

CentOS system management commands
Stat displays information about the specified file.02.cd /home/itcast03.stat familyA04.05.Who and w show online login users06.who07.08.Whoami displays the user's identity09.10.Hostname display Host Name11.hostname12.Hostname-I display Host IP Address13.14.Uname: displays system information15.Uname-a displays all information (kernel name, host name, kernel version number, kernel version, hardware name, processor type, hardware platform type, and operating system name)16.17.18.Top displays the dynamic display process of processes that consume the most resources in the current system, real-time monitoring19.20.Ps displays Transient Process status21.Ps-aux displays the status of all transient processes22.23.Du displays the total disk space used by the specified file (directory). You can use -- help to view help.24.du25.du familyA26.du -h familyA27.28.Df displays the disk space usage of the file system29.df30.df -h31.32.Free displays the usage of the current memory and swap space33.34.Ifconfig displays network interface information35.36.Ping to test network connectivity37.38.Netstat displays network status information