use
$psrinfo
0 on-line since 03/10/05 14:49:00
1 on-line since 03/10/05 14:49:09
4 on-line since 03/10/05 14:49:09
5 on-line since 03/10/05 14:49:09
8 on-line since 03/10/05 14:49:09
9 on-line since 03/10/05 14:49:09
10 on-line since 03/10/05 14:49:09
11 on-line since 03/10/05 14:49:09
12 on-line since 03/10/05 14:49:09
13 on-line since 03/10/05 14:49:09