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Chet Ramey
22 lines
455 B
Plaintext
22 lines
455 B
Plaintext
# some systems, like old SunOS, have stat on /dev/fd/N and fstat(N, ...)
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# return different results
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: ${TMPDIR:=/tmp}
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trap 'rm -f ${TMPDIR}/pipe}' 0 1 2 3 6 15
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exec 6>&-
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echo "t -p /dev/fd/6"
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test -p /dev/fd/6
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echo $?
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rm -f ${TMPDIR}/pipe 2>/dev/null
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mkfifo ${TMPDIR}/pipe
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cat < ${TMPDIR}/pipe &
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exec 6>&-
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exec 6>${TMPDIR}/pipe
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echo "t -p /dev/fd/6"
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test -p /dev/fd/6
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echo $?
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exec 2>/dev/null # disable process termination message
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kill $! 2>/dev/null
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