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Top Forums UNIX for Dummies Questions & Answers Command to check if a particular process is running Post 302424945 by vr3w3c9 on Wednesday 26th of May 2010 04:56:49 PM
Old 05-26-2010
Command to check if a particular process is running

Hi

What is the best command to check if a particular process is running in a linux server or not

To check any java process, I use the below command.

ps -ef |grep jvm

When I execute the above command, it lists me all the processess . The above command should ideally return only the processess that are running in the server. But even if the particular jvm process is not running/it has been stopped, it gives them as results as well.

Please adivse, How to check this.
 

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JSVC(1) 						   Apache Commons Daemon project						   JSVC(1)

NAME
jsvc - application to launch java daemon SYNOPSIS
jsvc [-jvm JVM name] [-client client JVM] [-server server JVM] [-classpath path] [-cp path] [-java-home directory] [-version] [-help] [-?] [-nodetach] [-debug] [-check] [-user user] [-wait waittime] [-umask mask] [-stop] [-verbose:class|gc|jni] [-outfile /full/path/to/file] [-errfile /full/path/to/file] [-pidfile /full/path/to/file] [-Dproperty=value] [-Xoption] DESCRIPTION
jsvc executes classfile that implements a Daemon interface. OPTIONS
-jvm JVM name use a specific Java Virtual Machine. -client client JVM use a client Java Virtual Machine. -server server JVM use a server Java Virtual Machine. -cp/ -classpath directory and zip/jar files set search path for service classes and resouces -java-home directory set the path of your JDK or JRE installation (or set the JAVA_HOME environment variable) -version show the current Java environment version (to check correctness of -home and -jvm. Implies -nodetach) -help show this help page (implies -nodetach) -nodetach don't detach from parent process and become a daemon -debug verbosely print debugging information -check only check service (implies -nodetach) -stop stop the service using the file given in the -pidfile option -wait waittime wait up to waittime seconds for the service to start waittime should multiple of 10 (min=10) -umask mask sets the file mode creation mask -user user user used to run the daemon (defaults to current user) -verbose[:class|gc|jni] enable verbose output -outfile /full/path/to/file Location for output from stdout (defaults to /dev/null). Use the value '&2' to simulate '1>&2', or 'SYSLOG' to send output to the system log. -errfile /full/path/to/file Location for output from stderr (defaults to /dev/null). Use the value '&1' to simulate '2>&1', or 'SYSLOG' to send output to the system log. -pidfile /full/path/to/file Location for output from the file containing the pid of jsvc (defaults to /var/run/jsvc.pid) -D<name>=<value> set a Java system property -X<option> set Virtual Machine specific option AUTHOR
JSVC is part of the Apache Commons Daemon project. Authors are Jean-Frederic Clere, Remy Maucherat, Yoav Shapira, Bill Barker, Mladen Turk. JSVC is released under the Apache License Version 2.0. Jsvc version 1.0.6 06/10/2014 JSVC(1)
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