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9 lines
386 B
Text
9 lines
386 B
Text
# Most shells print a message when a foreground job is killed by a signal.
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# POSIX allows this, provided the message is sent to stderr, not stdout.
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# Some trickery is needed to capture the message as redirecting stderr of
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# the command itself does not affect it. The colon command ensures that
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# the subshell forks for ${SH}.
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exec 3>&1
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r=`(${SH} -c 'kill $$'; :) 2>&1 >&3`
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[ -n "$r" ]
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