Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Shell script to check a command executed sucessfully or not
Top Forums UNIX for Beginners Questions & Answers Shell script to check a command executed sucessfully or not Post 303043488 by sravani25 on Wednesday 29th of January 2020 03:52:14 PM
Old 01-29-2020
Shell script to check a command executed sucessfully or not
Hi All,


I am trying to write a shell script to check if a command executed successfully or not in rhel 7 and finding the installed tomcat version.


I am using below script.


Code:
var4=$(find / -name "catalina.jar" ! -size 0 |egrep -v "tmp|docker|WinSxS|Permission|HISTORY|alternatives|bearer11ssl|manifest")

i=`which java`


for loc4 in $var4
do

abc=`$i -classpath $loc4 org.apache.catalina.util.ServerInfo`
xyz="$abc"
status=$?
if [ $status -eq 0 ];then
 #   tomcat_version=`grep -w "Server number:" $xyz`
  #$xyz > /tmp/tomcat
  echo -e "{\"'tomcat'\":\"'"$xyz"'\"}"
fi

done



But when i am trying to execute script it's displaying the output info even if the command not executed successfully.




Output :



Code:
Error: Could not find or load main class org.apache.catalina.util.ServerInfo
{"'tomcat'":"''"}
{"'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'"}

Last edited by Scrutinizer; 01-29-2020 at 05:03 PM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

problem executed shell command from PL/SQL

i wrote plsql procedure that executed shell command using java class my problem is that in some reason the shell command ( liks Is -l , mv ... ) are not recordnize can someone help me with that 10x Alodvg (2 Replies)
Discussion started by: alodvg
2 Replies

2. Shell Programming and Scripting

perl - why is the shell script executed before the print command?

i'm writing some simple scripts to help me learn perl. why does the print command get called after the shell script is executed? the purpose of the shell script is to simply echo to the screen "script run". which is does, but before the print command, you can clearly see the shell script is... (3 Replies)
Discussion started by: mjays
3 Replies

3. Shell Programming and Scripting

Verifying if the shell command executed or not?

Hi, I am working on a shell script that would verify if the mount command has executed or not. So , i have been doing this. mount /dev/cdrom /mnt/cdrom echo "$?" if ; then echo " Mount succesful" else echo " Mount unsuccessful" fi (3 Replies)
Discussion started by: eamani_sun
3 Replies

4. Shell Programming and Scripting

Need help! command working ok when executed in command line, but fails when run inside a script!

Hi everyone, when executing this command in unix: echo "WM7 Fatal Alerts:", $(cat query1.txt) > a.csvIt works fine, but running this command in a shell script gives an error saying that there's a syntax error. here is content of my script: tdbsrvr$ vi hc.sh "hc.sh" 22 lines, 509... (4 Replies)
Discussion started by: 4dirk1
4 Replies

5. Shell Programming and Scripting

Shell script not getting executed

Hi As per my requirement when I run . ./file.sh am getting the following error -bash:ELF: command not found when i execute as ./file.sh it is getting executed.How to resolve this. Thanks in advance. (3 Replies)
Discussion started by: pracheth
3 Replies

6. UNIX for Dummies Questions & Answers

How to send keyboard inputs toa UNIX command executed from a shell script?

I have a unix command that prompts for 'y'. How do I run this from my shell script? (4 Replies)
Discussion started by: Sree10
4 Replies

7. UNIX for Dummies Questions & Answers

Set Command to output a log of every command executed in the script

Hi Guys, I like to output every command executed in the script to a file. I have tried set -x which does the same. But it is not giving the logs of the child script which is being called from my script. Is there any parameters in the Set command or someother way where i can see the log... (2 Replies)
Discussion started by: mac4rfree
2 Replies

8. Shell Programming and Scripting

Check/get the exit status of a remote command executed on remote host through script

Geeks, Could you please help me out in my script and identify the missing piece. I need to check/get the exit status of a remote command executed on remote host through script and send out an email when process/processes is/are not running on any/all server(s). Here's the complete... (5 Replies)
Discussion started by: lovesaikrishna
5 Replies

9. Shell Programming and Scripting

awk command not getting executed in shell script

I am able to execute awk command from shell prompt. but the same command is not getting executed when written and run in a bash script the command from bash cmd prompt. awk '/world/{for (i=2; i<NF; i++) printf $i " "; print $NF}1' myfile >tmp$$ ; mv tmp$$ myfile file: # hello world my... (4 Replies)
Discussion started by: ashima jain
4 Replies

10. Shell Programming and Scripting

To check if the JAVA Program is successfully executed in sh shell scripting

Hi , I have written a shell script to call a java program say load_id.sh .This sh script indeed is executed implicitly in other sh script which calls 2 more sh scripts one by one. I need to check if the load_id.sh (which calls java program) is executed successfully only then continue with... (1 Reply)
Discussion started by: preema
1 Replies

LEARN ABOUT CENTOS

ocf_heartbeat_tomcat

OCF_HEARTBEAT_TOMCAT(7) 					OCF resource agents					   OCF_HEARTBEAT_TOMCAT(7)

NAME

       ocf_heartbeat_tomcat - Manages a Tomcat servlet environment instance

SYNOPSIS

       tomcat [start | stop | status | monitor | meta-data | validate-all]

DESCRIPTION

       Resource script for Tomcat. It manages a Tomcat instance as a cluster resource.

SUPPORTED PARAMETERS

       tomcat_name
	   The name of the resource, added as a Java parameter in JAVA_OPTS:

	   -Dname=<tomcat_name> to Tomcat process on start. Used to ensure process is still running and must be unique.

	   (unique, optional, string, no default)

       script_log
	   Log file, used during start and stop operations.

	   (unique, optional, string, no default)

       tomcat_stop_timeout
	   Time-out for stop operation. DEPRECATED

	   (optional, integer, no default)

       tomcat_suspend_trialcount
	   Maximum number of times to retry stop operation before suspending and killing Tomcat. DEPRECATED. Does not retry.

	   (optional, integer, no default)

       tomcat_user
	   The user who starts Tomcat.

	   (optional, string, default "root")

       statusurl
	   URL for state confirmation.

	   (optional, string, no default)

       max_stop_time
	   Number of seconds to wait during a stop before drastic measures (force kill) are used on the tomcat process. This number MUST be less
	   than your cluster stop timeout for the resource. The default value is five seconds before the timeout value of stop operation. When it
	   is over this value, it stops a process in kill commands. This parameter is only effective on Tomcat 6 or later.

	   (optional, integer, no default)

       java_home
	   Home directory of Java.

	   (required, string, no default)

       java_opts
	   Java JVM options used on start and stop.

	   (optional, string, no default)

       catalina_home
	   Home directory of Tomcat.

	   (required, string, no default)

       catalina_base
	   Instance directory of Tomcat

	   (unique, optional, string, no default)

       catalina_out
	   Log file name of Tomcat

	   (unique, optional, string, no default)

       catalina_pid
	   A PID file name for Tomcat.

	   (unique, optional, string, no default)

       tomcat_start_script
	   Absolute path to the custom tomcat start script to use.

	   (optional, string, no default)

       tomcat_start_opts
	   Tomcat start options.

	   (optional, string, no default)

       catalina_opts
	   Catalina options, for the start operation only.

	   (optional, string, no default)

       catalina_tmpdir
	   Temporary directory of Tomcat

	   (unique, optional, string, no default)

       catalina_rotate_log
	   Rotate catalina.out flag.

	   (optional, boolean, default NO)

       catalina_rotatetime
	   catalina.out rotation interval (seconds).

	   (optional, integer, no default)

       java_endorsed_dirs
	   Java_endorsed_dirs of tomcat

	   (unique, optional, string, no default)

       logging_config
	   Logging_config of tomcat

	   (unique, optional, string, no default)

       logging_manager
	   Logging_manager of tomcat

	   (unique, optional, string, no default)

SUPPORTED ACTIONS

       This resource agent supports the following actions (operations):

       start
	   Starts the resource. Suggested minimum timeout: 60s.

       stop
	   Stops the resource. Suggested minimum timeout: 120s.

       status
	   Performs a status check. Suggested minimum timeout: 60.

       monitor
	   Performs a detailed status check. Suggested minimum timeout: 30s. Suggested interval: 10s.

       meta-data
	   Retrieves resource agent metadata (internal use only). Suggested minimum timeout: 5s.

       validate-all
	   Performs a validation of the resource configuration. Suggested minimum timeout: 5.

EXAMPLE

       The following is an example configuration for a tomcat resource using the crm(8) shell:

	   primitive p_tomcat ocf:heartbeat:tomcat 
	     params 
	       java_home=string 
	       catalina_home=string 
	     op monitor depth="0" timeout="30s" interval="10s"

SEE ALSO

       http://www.linux-ha.org/wiki/tomcat_(resource_agent)

AUTHOR

       Linux-HA contributors (see the resource agent source for information about individual authors)

resource-agents UNKNOWN 					    06/09/2014						   OCF_HEARTBEAT_TOMCAT(7)
All times are GMT -4. The time now is 10:58 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy