webbench support the post from file ,so as the head
the -A xxx support the assertion the -h xxx support setting the head of request
example: ./webbench -c 2 -t 10 -F "post.txt" -h "accept:*" -A "success" -H "head.txt" http://t17.aaa.com
post.txt:
coupon_code=testyou11
coupon_code=testyou12
coupon_code=testyou13
head.txt:
token:111111
token:222222