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# Test that an interactive shell accesses $MAIL.
goodfile=/var/empty/sh-test-goodfile
mailfile=/var/empty/sh-test-mailfile
T=$(mktemp sh-test.XXXXXX) || exit
ENV=$goodfile MAIL=$mailfile ktrace -i -f "$T" ${SH} +m -i </dev/null >/dev/null 2>&1
if ! grep -q $goodfile "$T"; then
# ktrace problem
rc=0
elif grep -q $mailfile "$T"; then
rc=0
fi
rm "$T"
exit ${rc:-3}
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