tests/redir7.sub

   1 # weird redirections that caused trouble and were fixed in post-3.0 bash
   2 stuff()
   3 {
   4         c=1
   5         ( sleep 5 < /dev/null >/dev/null 2>&1 & ) &
   6 }
   7
   8 exec 3>&1
   9 eval `
  10 exec 4>&1 >&3 3>&-
  11 {
  12         stuff 4>&-
  13         echo "c=$c" >&4
  14 }`
  15 echo c1 is $c
  16
  17 unset -f stuff
  18
  19 stuff()
  20 {
  21         c=2
  22         ( sleep 5 < /dev/null >/dev/null 2>&1 & )
  23 }
  24
  25 exec 3>&1
  26 eval `
  27 exec 4>&1 >&3 3>&-
  28 {
  29         stuff 4>&-
  30         echo "c=$c" >&4
  31 }`
  32 echo c2 is $c
  33
  34 unset -f stuff
  35
  36 stuff()
  37 {
  38         c=3
  39         { sleep 5 < /dev/null >/dev/null 2>&1 & } &
  40 }
  41
  42 exec 3>&1
  43 eval `
  44 exec 4>&1 >&3 3>&-
  45 {
  46         stuff 4>&-
  47         echo "c=$c" >&4
  48 }`
  49 echo c3 is $c
  50
  51 unset -f stuff
  52
  53 stuff()
  54 {
  55         c=4
  56         { sleep 5 < /dev/null >/dev/null 2>&1 & }
  57 }
  58
  59 exec 3>&1
  60 eval `
  61 exec 4>&1 >&3 3>&-
  62 {
  63         stuff 4>&-
  64         echo "c=$c" >&4
  65 }`
  66 echo c4 is $c
  67
  68 # fixed in bash-3.1
  69 echo 'exec <&3' | ${THIS_SH} 3<&0