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Top Forums UNIX for Beginners Questions & Answers Shell script to check a command executed sucessfully or not Post 303043554 by sravani25 on Friday 31st of January 2020 11:20:34 AM
Old 01-31-2020
Hi rbatte1 and Rudi,


Thanks for the reply.

My intention is when ever I run the below command, if the output is successful then I want to print successful output need to ignore if the command output is not successfull.
Code:
$i -classpath $loc4 org.apache.catalina.util.ServerInfo

But I tried to redirect the output but still getting error messages.
Code:
Error: Could not find or load main class org.apache.catalina.util.ServerInfo
{"'tomcat'":"'Server version: Apache Tomcat/9.0.30 Server built: Dec 7 2019 16:42:04 UTC Server number: 9.0.30.0 OS Name: Linux OS Version: 3.10.0-1062.9.1.el7.x86_64 Architecture: amd64 JVM Version: 1.8.0_171-b11 JVM Vendor: Oracle Corporation'"}


Moderator's Comments:
Mod Comment
Please wrap all code, files, input & output/errors in CODE tags.
It makes them easier to read and preserves spacing for indenting or fixed-width data.

Last edited by rbatte1; 02-06-2020 at 06:19 AM..
 

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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 08/17/2012 JSVC(1)
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