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I would like to display a dialog box using zenity or dialog or something similar based on a specific string displayed in console window?

Background: I have created a wrapper shell script which calls Tomcat 7 catalina.sh. I want to display a info box with a OK message when "Server startup in XXXXXms" is outputted to the console. I dont want to edit the catalina.sh as its prone to changes or overwritting. So I need to do this in wrapper shell script.

Is the above possible?

Thanks

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Completely untested:

/path/to/catalina.sh 2>&1 | while IFS= read -r line; do
    echo "$line"
    if [[ $line == *"Server startup in"* ]]; then
        dialog --msgbox "$message" 10 40
    fi
done
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  • Should message be line? – Jeff Schaller Sep 25 '18 at 14:28
  • That is a question for @Anas to answer. – glenn jackman Sep 25 '18 at 14:29

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