Note the new '-n' option, which tells sed to not print the pattern space unless explicitly commanded to do so.
请注意新的' - n '选项,该选项告诉sed除非明确要求打印模式空间,否则不这样做。
2
Nspace-separated integers, one for each flavor from 1 to N , which are 0 if the corresponding flavor should be prepared unmalted, and 1 if it should be malted.