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ubixos / bin / sh / tests / expansion / cmdsubst18.0

Charlie Root on 16 Jan 2018 194 bytes BSD Shell

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# $FreeBSD: releng/11.1/bin/sh/tests/expansion/cmdsubst18.0 315168 2017-03-12 18:24:45Z jilles $

x=X
unset n
r=${x+$(echo a)}${x-$(echo b)}${n+$(echo c)}${n-$(echo d)}$(echo e)
[ "$r" = aXde ]