ps

Information about running processes.

More information.

List all running processes:

ps aux

List all running processes including the full command string:

ps auxww

Search for a process that matches a string:

ps aux | grep {string}

List all processes of the current user in extra full format:

ps --user $(id -u) -F

List all processes of the current user as a tree:

ps --user $(id -u) f

Get the parent PID of a process:

ps -o ppid= -p {pid}

Sort processes by memory consumption:

ps --sort size

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