c:\test>555304
Thread 1
Thread 2
Thread 3
Thread 4
Via system:
1 2 3 4 5 6 7 8 9

Via system:
1 2 3 4 5 6 7 8 9

Via system:
1 2 3 4 5 6 7 8 9

Via system:
1 2 3 4 5 6 7 8 9

Via backticks
1 2 3 4 5 6 7 8 9

Via backticks
1 2 3 4 5 6
Via backticks
1 2 3 4 5 6 7 8 9

7 8 9
Via backticks
1 2 3 4 5 6 7 8 9

Via pipe
1 2 3 4 5 6 7 8 9

Via pipe
1 2 3 4 5 6 7 8 9

Via pipe
1 2 3 4 5 6 7 8 9

Via pipe
1 2 3 4 5 6 7 8 9