[334]: ./tail.pl tail
abstract  5843  0.0  0.2  2324 1052 pts/0    S    01:00   0:00 tail
abstract  5843 99.9  0.2  2328 1100 pts/0    S    01:00   0:01 tail
abstract  5843 99.9  0.2  2328 1100 pts/0    S    01:00   0:01 tail
abstract  5843 99.9  0.2  2328 1100 pts/0    S    01:00   0:02 tail
abstract  5843 83.6  0.2  2328 1100 pts/0    S    01:00   0:02 tail
abstract  5843 99.9  0.2  2328 1100 pts/0    S    01:00   0:03 tail
abstract  5843 88.0  0.2  2328 1100 pts/0    S    01:00   0:03 tail
abstract  5843 99.9  0.2  2328 1100 pts/0    S    01:00   0:04 tail
abstract  5843 90.6  0.2  2328 1100 pts/0    S    01:00   0:04 tail
abstract  5843 83.8  0.2  2328 1100 pts/0    S    01:00   0:05 tail
[335]: ./tail.pl nontail
abstract  5854 86.0  0.9  6300 5040 pts/0    S    01:00   0:00 nontail
abstract  5854 85.5  1.7 10276 9056 pts/0    S    01:00   0:01 nontail
abstract  5854 85.3  2.5 14244 13024 pts/0   S    01:00   0:02 nontail
abstract  5854 85.7  3.3 18212 16996 pts/0   S    01:00   0:03 nontail
abstract  5854 86.0  4.0 22184 20964 pts/0   S    01:00   0:04 nontail
abstract  5854 85.8  4.8 26148 24928 pts/0   S    01:00   0:05 nontail
abstract  5854 85.8  5.6 30116 28900 pts/0   S    01:00   0:06 nontail
abstract  5854 85.7  6.3 34084 32868 pts/0   S    01:00   0:06 nontail
abstract  5854 85.7  7.1 38056 36836 pts/0   S    01:00   0:07 nontail
abstract  5854 85.9  7.9 42024 40808 pts/0   S    01:00   0:08 nontail