pidof It is a command-line utility that allows you to find the process ID of a running program.
In this article we will explain how to use commands
How to use the pidof command
There are various applications
pidof For Red Hat and Debian distributions. In a Red Hat distribution, the pidof command is part of the package
procps-ngWhile in Debian, it is part of
sysvinit-utils. We’ll cover options common to both apps.
Syntax for commands
pidof They are as follows:
pidof [OPTIONS] NAMA_PROGRAM
When called without any options, pidof will print the PIDs of all running programs that match the name specified. For example, to find the PID of your SSH server, you could run:
If a process is running with the corresponding name
sshd, Their PID will be displayed on the screen. If no matches are found, the result is blank.
4332 4328 881
0 When at least one program matches the requested name. Otherwise, the exit code is
1. This output is useful when used for analysis in shell scripts.
To ensure that only the product ID is displayed for the program that you are looking for, use the full pathname of the program as an argument. For example, if you have two programs running with the same name that are in two different directories, pidof will display the PIDs for both programs that are currently running.
By default, all PIDs of the corresponding running programs are displayed. Use the options
-s To force pidof to display only one PID:
pidof -s nama_program
-o It allows you to exclude processes with the specified PID from the command output:
pidof -o pid nama_program
pidof Called with options
-o, You can use PID
%PPID Which represents a shell summon or a shell text.
To return the process ID only for processes running in the same root directory, use the option
This option only works if pidof is running as the root or sudo user:
pidof -c pid program_name
Example of using the Pidof command
The following example shows how to use the pidof command with the command
kill To terminate the program.
Suppose your Firefox browser has become unresponsive, and you need to end the Firefox process. First, find PID, along with pidof:
The command will print all Firefox processes:
2551 2514 1963 1856 1771
Once you know Firefox is processing PIDs, send a signal
SEGTERM To stop everything:
sudo kill -9 2551 2514 1963 1856 1771
You can also use the expression to replace the command with
$(...)To end a program with one command:
sudo kill -9 $(pidof firefox)
The pidof command is used to find out the PID of a specific program that is running.
pidof is a simple command that doesn’t have many options. Usually you will just call pidof with the name of the program you are looking for.