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Shell script to check a command executed sucessfully or not

 
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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..
 
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