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ubixos / bin / sh / tests / expansion / plus-minus2.0
@Charlie Root Charlie Root on 16 Jan 2018 124 bytes BSD Shell
# $FreeBSD: releng/11.1/bin/sh/tests/expansion/plus-minus2.0 206145 2010-04-03 20:55:56Z jilles $

e=
test "${e:-\}}" = '}'