bash: How do I ensure termination of process substitution used with exec?

Question

If I run

$#/bin/bash
for i in `seq 5`; do
    exec 3> >(sed -e \"s/^/$i: /\"; echo \"$i-\")
    echo foo >&3
    echo bar >&3
    exec 3&         


        

Answer 1

Easy, just pipe everything into cat.

#!/bin/bash
for i in `seq 5`; do
  {
  exec 3> >(sed -e "s/^/$i: /"; echo "$i-")
  echo foo >&3
  echo bar >&3
  exec 3<&-
  }|cat
done

Here's the output:

1: foo
1: bar
1-
2: foo
2: bar
2-
3: foo
3: bar
3-
4: foo
4: bar
4-
5: foo
5: bar
5-