running a shell script on logout

[snail22]

I want my MacBook run a simple shell script every time I log out... couldn't figure out how to do this within Mac OS (running Catalina) so I downloaded Power Manager and followed these instructions: https://www.dssw.co.uk/blog/2012-03-09-how-to-run-a-shell-script-when-logging-out/

No luck... even using a near-identical script to the one in the instructions. Is this something that isn't supported in Catalina?

 

[bogdanw]

I think it would be easier to make an app in AppleScript, something like this:

set question to display dialog "Do you wish to" buttons {"shut down", "log out", "cancel"} default button 3
set answer to button returned of question
if answer is equal to "shut down" then
    do shell script "Your script here"
    tell application "System Events"
        shut down
    end tell
end if
if answer is equal to "log out" then
    do shell script "Your script here"
    tell application "System Events"
        log out
    end tell
end if
if answer is equal to "cancel" then
    return
end if