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I'm trying to set a variable based on user input. I know that what I have configured to prompt the user will either respond with "button returned:yes" or "button returned:no".

I would like the variable to be set to "True" if the button returns yes. and "False" if the button returns no.

This is what I have so far:

response="button returned:yes"
var=`/usr/bin/osascript -e 'display dialog "Is a reboot required?" buttons {No,Yes}'`
/bin/test "$response" = "$var" && reboot="True" || reboot="False"

What am I doing wrong? The $reboot variable is always setting to false, regardless of the user input. This is a bash script, intended to be run on a macOS system.

1 Answer 1

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Adding this line to the end of a copy of your script:

echo "r: '$response'; v: '$var'; b: '$reboot'"

gives this output:

r: 'button returned:yes'; v: 'button returned:yes '; b: 'False'

It seems that osascript is appending a space to the output, and since "string" is not equal to "string ", your test fails to act as you expect.

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  • Perfect! Thank you! I simply set $response to include a space at the end.
    – chippewa
    Jun 1, 2017 at 16:00

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