echo "running time (millis) = 112" | sed -rn 's/^running time \(millis\) = ([0-9]+)$/\1/p'所以如果你想从文件里抽取：sed -rn 's/^running time \(millis\) = ([0-9]+)$/\1/p' 文件名即可
x=0awk截取出数字 如果大于18000 就x+1最后输出x
