Linux Process Management

Procedures and processes do not correspond to each other, a program can be shared by multiple processes, the program is a static concept, and the process is the process of program execution, has a certain life cycle, is the dynamic generation and extinction.

The process that produces the child process is the parent process. The parent process dies, and the child process dies.

Foreground process

is to run in the foreground, and the user cannot before it completes another command

Background process

With &

Command: W View user's online information

Load average Server payload

Command: PS

-A shows all user processes

-E Show All processes

-U or-l View details of your own process

-le or-aux View details of the processes performed by all users

KILL-1 PID Restart process is the same as/etc/init.d/httpd restart function

View process PID Pgrep + process name Pgrep HTTDP

Pkill + process name without viewing process PID direct shutdown

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Linux Process Management