I was wondering about this too. /etc/rc does this:
if ! kldstat -v | grep -E 'linux(aout|elf)' > /dev/null; then
kldload linux > /dev/null 2>&1
fi
Works better for me if I add parens to the "if ! ..." bit:
if ! ( kldstat -v | grep -E 'linux(aout|elf)' > /dev/null ); then
Hmm, "man sh" promises that the first variant should work, but when
I try this:
if ! pwd | cat /dev/null; then
echo yup
else
echo nope
fi
it prints "yup". Also prints "yup" if I remove the "!". Shell bug?!
(Apr 6 vintage current).
++sakari
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