How to check if a particular service is running on Ubuntu

Question

I do not know the service\'s name, but would like to stop the service by checking its status.

For example, if I want to check if the PostgreSQL service is running or no

Answer 1

the best way is using of nmap tool in terminal. nmap is an useful tool that analyse an up system, using it's IP Address, then show all actived network services.

open terminal and use of this example :

~$ nmap 192.168.1.3/24

Starting Nmap 5.21 ( http://nmap.org ) at 2016-05-16 22:49 IRDT
Nmap scan report for 192.168.1.3
Host is up (0.00020s latency).
Not shown: 994 closed ports
PORT     STATE SERVICE
22/tcp   open  ssh
23/tcp   open  telnet
139/tcp  open  netbios-ssn
445/tcp  open  microsoft-ds
3389/tcp open  ms-term-serv
3689/tcp open  rendezvous

Answer 2

To check the status of a service on linux operating system :

//in case of super user(admin) requires    
sudo service {service_name} status 
// in case of normal user
service {service_name} status 

To stop or start service

// in case of admin requires
sudo service {service_name} start/stop
// in case of normal user
service {service_name} start/stop 

To get the list of all services along with PID :

sudo service --status-all

You can use systemctl instead of directly calling service :

systemctl status/start/stop {service_name}

Answer 3

For Ubuntu (checked with 12.04)

You can get list of all services and select by color one of them with 'grep':

sudo service --status-all | grep postgres

Or you may use another way if you know correct name of service:

sudo service postgresql status

Answer 4

run

ps -ef | grep name-related-to-process

above command will give all the details like pid, start time about the process.

like if you want all java realted process give java or if you have name of process place the name

Answer 5

I don't have an Ubuntu box, but on Red Hat Linux you can see all running services by running the following command:

service --status-all

On the list the + indicates the service is running, - indicates service is not running, ? indicates the service state cannot be determined.

Answer 6

for Centos 6.10 : /sbin/service serviceNAME status

for Centos 7.6 and ubuntu 18.04: systemctl status NAME.service

works for all of them: service --status-all