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[BUG] ERR trap triggered twice when using 'command'


From: Martijn Dekker
Subject: [BUG] ERR trap triggered twice when using 'command'
Date: Sun, 1 Apr 2018 11:54:01 +0100
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:52.0) Gecko/20100101 Thunderbird/52.7.0

$ bash -c 'trap "echo WHOA" ERR; command false'
WHOA
WHOA

Expected output: just one WHOA (as on *ksh, zsh)

Thanks,

- M.



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