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PODisown shell once a process get started using shell script
 

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  1. PODisown shell once a process get started using shell script
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    <p>I am trying to write a script for starting tomcat server which get disassociated from the shell once the execution of the script complete. For example please see below snapshot of the screen.</p> <pre><code>bash-3.00# ./startup.sh Using CATALINA_BASE: /opt/tomcat/6.0.32 Using CATALINA_HOME: /opt/tomcat/6.0.32 Using CATALINA_TMPDIR: /opt/tomcat/6.0.32/temp Using JRE_HOME: /opt/jdk1.6.0_26/ Using CLASSPATH: /opt/tomcat/6.0.32/bin/bootstrap.jar bash-3.00# ps -eaf | grep tomcat root 4737 2945 0 02:45:53 pts/24 0:00 grep tomcat root 4734 29777 1 02:45:42 pts/24 0:19 /opt/jdk1.6.0_26//bin/java -Djava.util.logging.config.file=/opt/tomcat/6.0.32/c </code></pre> <p>Now as you can see that once the execution of the script complete the tomcat process is associated with pts/24 till I close the shell. But what I want is that even if the shell is kept open the process should show a behavior like below </p> <pre><code>bash-3.00# ps -eaf | grep tomcat root 13985 2945 0 22:40:13 pts/24 0:00 grep tomcat root 13977 29777 1 22:40:01 ? 0:22 /opt/jdk1.6.0_26//bin/java -Djava.util.logging.config.file=/opt/tomcat/6.0.32// </code></pre> <p>The operating System is Solaris. The various option I used to accomplish the same are using nohup, and disown but still the process is associated with shell. </p> <p>The other mechanism is to put in crontab or use svc to make the process start as system comes up i.e. daemon or we can write a small C program which forks a process and goes away. </p> <p>Here please note that the process is running in background.</p> <p>But I want to achieve the same using a shell or perl script. So any thought on the same will help me a lot.</p> <p>Thanks in advance.</p>
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    1. USAbhinav
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    1. COhave you tried combination of nohup and & ?
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      1. USAndreas Wong
    2. COYup still I am getting the process associated with the shell. Basically I did something as below bash-3.00# nohup ./startup.sh & But still it associated with shell.
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      1. USAbhinav
    3. COWe are not using Solaris but 'wrapping' Tomcat with the [Java Service Wrapper](http://wrapper.tanukisoftware.com/doc/english/download.jsp), we exhibit the behavior you are looking for under Linux.
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      1. USBruno Grieder
 

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