Wait Pid
$!
is a special variable in bash that holds the process ID of the last background command.
wait $!
waits for the last background command to finish.
sleep 5 &
wait $!
echo "Done"
$!
is a special variable in bash that holds the process ID of the last background command.
wait $!
waits for the last background command to finish.
sleep 5 &
wait $!
echo "Done"