Linux process management, process

Linux Process Management, common signals between process processes 1 SIGHUP if the process is terminated, then the process 2 SIGINT will be hung up from the keyboard ctrl-c interrupt process 9 SIGKILL force terminate process 15 SIGTERM normal terminate process 17 SIGSTOP from the keyboard ctrl- for details about z pause process, see man 7 signal process management command ps display current process information top display current process information in real time and process management pstree display process tree structure kill send signals to process, for features such as process restart and termination, killall closes process nice by process name to start a new process and sets its priority. root can adjust the nice value at will, in the range of-20 ~ 19 generally, users can only increase the nice value in the range of 0 ~ 19 renice modify nice values of running processes free Display memory usage uname Display System Information uptime display system start time and workload netstat display network information dmesg display core detection system information vmstat check System Resource running status fuser view processes using files lsof view processes using those files pidof find PID related files of running processes/proc/* all processes of the entire system for more information, see man 5 proc.