# cd fork
# fork.out
parent 0 532507 942116
child  0 942116 946213
parent 1 942116 946213
child  1 946213 946214
parent 2 946213 946214
child  2 946214 946215
parent 2 942116 946213
child  2 946213 954406
parent 1 532507 942116
child  1 942116 962597
parent 2 942116 962597
child  2 962597 962598
parent 2 532507 942116
child  2 942116 970789
# fork.out >output.txt
# cat output.txt
child  0 978980 983077
child  1 983077 983078
child  2 983078 983079
child  0 978980 983077
child  1 983077 983078
parent 2 983077 983078
child  0 978980 983077
parent 1 978980 983077
child  2 983077 991270
child  0 978980 983077
parent 1 978980 983077
parent 2 978980 983077
parent 0 532507 978980
child  1 978980 999461
child  2 999461 999462
parent 0 532507 978980
child  1 978980 999461
parent 2 978980 999461
parent 0 532507 978980
parent 1 532507 978980
child  2 978980 1007653
parent 0 532507 978980
parent 1 532507 978980
parent 2 532507 978980
# cd ../fork_flush
# fork.out >output.txt
# cat output.txt
child  0 1024036 1028133
child  1 1028133 1028134
child  2 1028134 1028135
parent 2 1028133 1028134
parent 1 1024036 1028133
child  2 1028133 1036326
parent 2 1024036 1028133
parent 0 532507 1024036
child  1 1024036 1044517
child  2 1044517 1044518
parent 2 1024036 1044517
parent 1 532507 1024036
child  2 1024036 1052709
parent 2 532507 1024036