How to check a service is running or not in Linux?

Some times we need to check the status of a service if it is running or not to cross verify something on server. Suppose you have edited your httpd.conf file and when restarting the service it just show start service is on. But when you try to get access to the web site the site is down. At that time we can use below command to check if Apache service is running or not.




Method 1: Using service command


             #service servicename status
    #service httpd status

clipped output of the above command


httpd (pid 7474) is running...

Method 2: Using init.d scripts which are located in /etc/init.d folder



/etc/init.d/cron status

Clipped output of init.d script:

cron start/running, process 1253



Method3: Using status command to check if the service is running or not


status atd


atd start/running, process 1245

To check all the services state at a time use below command

#service --status-all


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