Please submit with a job name
#PBS -N
or
qsub -N
[pbsdata@pbsserver ~]$ qsub -N testjob – /bin/sleep 1
2.pbsserver
[pbsdata@pbsserver ~]$ qsub -N myjob – /bin/sleep 1
3.pbsserver
[pbsdata@pbsserver ~]$ ls -ltr .o .e
-rw------- 1 pbsdata pbsdata 0 Aug 22 08:17 testjob.o2
-rw------- 1 pbsdata pbsdata 0 Aug 22 08:17 testjob.e2
-rw------- 1 pbsdata pbsdata 0 Aug 22 08:17 myjob.o3
-rw------- 1 pbsdata pbsdata 0 Aug 22 08:17 myjob.e3