How to "exec" with "DISPLAY"?

Question

I am trying to do

exec("DISPLAY=127.0.0.1:0.0 foo")

Errno::ENOENT: No such file or directory - DISPLAY=127.0.0.1:0.0 foo
    from (irb):1:in `exec'
    from (irb):1
    from :0

How to fix? Thanks.

Answer 1

Try

exec("env DISPLAY=127.0.0.1:0.0 foo")

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