tail -n 10000 sample_dbl.txt | python sitemap.py | sort -k 1 -t $‘\t‘ | python sitecombiner.py > 1.sort

 tail -n 10000 sample_dbl.txt | python sitemap.py | sort -k 1 -t $‘\t‘ | python sitecombiner.py | python sitereducer.py

关于\t