tests/coproc.tests

   1 coproc { echo a b c; sleep 2; }
   2
   3 echo $COPROC_PID
   4 echo ${COPROC[@]}
   5
   6 read LINE <&${COPROC[0]}
   7 echo $LINE
   8
   9 wait $COPROC_PID
  10
  11 coproc REFLECT { cat - ; }
  12
  13 echo $REFLECT_PID
  14 echo ${REFLECT[@]}
  15
  16 echo flop >&${REFLECT[1]}
  17 read LINE <&${REFLECT[0]}
  18
  19 echo $LINE
  20
  21 kill $REFLECT_PID
  22 wait $REFLECT_PID
  23
  24 coproc xcase -n -u
  25
  26 echo $COPROC_PID
  27 echo ${COPROC[@]}
  28
  29 echo foo >&${COPROC[1]}
  30 read <&${COPROC[0]}
  31
  32 echo $REPLY
  33 echo ${COPROC[@]}
  34
  35 cat /etc/passwd | grep root | awk -F: '{print $1;}' | sed 1q
  36
  37 exec 4<&${COPROC[0]}-
  38 exec >&${COPROC[1]}-
  39
  40 echo ${COPROC[@]}
  41
  42 read foo <&4
  43 echo $foo >&2
  44
  45 exit 0