What is the linux view process command – linux operation and maintenance

Linux commands to view processes include: 1. PS command, which can check which processes are running and their running status; 2. Top command, which can display the status of each thread in real time; 3. Pstree command, This command displays the derivation relationship between processes in the form of a tree diagram; 4. Pgrep command and so on.

Third, Linux view process command: Pstree command

The pstree command is displayed in a tree diagram The derivation relationship between processes is more intuitive to display.

Pstree command syntax:

pstree (option)

-a displays the complete command and parameters -c repeats the process to display separately -c displays the process ID, PID – nArrange processes by PID

Fourth, Linux view process command: Pgrep command

The pgrep command searches the process from the running process queue based on the name, and Display the found process id. Each process ID is expressed as a decimal number, separated from the next ID by a split string, the default split string is a new line. For each property option, the user can specify a comma-separated set of possible values ​​on the command line.

Pgrep command syntax:

pgrep (option) (parameter)

-l display process name and process PID -o process start ID -n process termination ID

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