![]() ![]() The tree is rooted at either pid or init if pid is omitted. Pstree shows running processes as a tree. Read More: Linux server performance Monitoring Tools # top The top program provides a dynamic real-time view of a running system. # ps -e To See every process except those running as root # ps -U root -u root -N To See process run by user vivek # ps -u orange top command # pidof nginxĦ5275 65274 65271 To see every process on the system # ps -A If the system has a start-stop-daemon (8) program that should be used instead. In that case these scripts are located in /etc/rc.d, where is the runlevel. This program is on some systems used in run level change scripts, especially when the system has a System-V like rc structure. Pidof command finds the process ids (pids) of the named programs. Nginx 65275 0.0 0.1 109368 2864 ? S 08:02 0:00 nginx: worker processįind the process ID of a running program using pidof ![]() x : Select processes without controlling ttysīy use ps command we can get process name # ps aux | grep įor example lets find httpd process (nginx pid) is running or not: # ps aux | grep nginx.u : Select all processes on a terminal, including those of other users.Type the following ps command to display all running process: # ps -aux | less ![]() ![]() If you got output along with process name/pid, your process is running. The easiest way to find out if process is running is run ps aux command and grep process name. A process is nothing but running instance of a program and each process has a unique PID on a Unix-like system. A PID is automatically assigned to each process when it is created. A PID is an acronym for process identification number on a Linux or Unix-like operating system. ![]()
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