# * The FD 3 is used to temporarily store FD 1. This is because the shell connects FD 1 to /dev/null when the command
# is launched in the background: this can be overriden in bash but not in standard bourne shell.
exec 3<&0
# * The FD 3 is used to temporarily store FD 1. This is because the shell connects FD 1 to /dev/null when the command
# is launched in the background: this can be overriden in bash but not in standard bourne shell.
exec 3<&0