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|
# weird redirections that caused trouble and were fixed in post-3.0 bash
stuff()
{
c=1
( sleep 5 < /dev/null >/dev/null 2>&1 & ) &
}
exec 3>&1
eval `
exec 4>&1 >&3 3>&-
{
stuff 4>&-
echo "c=$c" >&4
}`
echo c1 is $c
unset -f stuff
stuff()
{
c=2
( sleep 5 < /dev/null >/dev/null 2>&1 & )
}
exec 3>&1
eval `
exec 4>&1 >&3 3>&-
{
stuff 4>&-
echo "c=$c" >&4
}`
echo c2 is $c
unset -f stuff
stuff()
{
c=3
{ sleep 5 < /dev/null >/dev/null 2>&1 & } &
}
exec 3>&1
eval `
exec 4>&1 >&3 3>&-
{
stuff 4>&-
echo "c=$c" >&4
}`
echo c3 is $c
unset -f stuff
stuff()
{
c=4
{ sleep 5 < /dev/null >/dev/null 2>&1 & }
}
exec 3>&1
eval `
exec 4>&1 >&3 3>&-
{
stuff 4>&-
echo "c=$c" >&4
}`
echo c4 is $c
# fixed in bash-3.1
echo 'exec <&3' | ${THIS_SH} 3<&0
|
