1. 同時滿足多個關鍵字 grep "word1" file_name | grep "word2" | grep "word3" 2. 滿足任意關鍵字 grep -e "word1" -e "word2" -e "word3" file_name 3. 排除關鍵字 grep -v "word" f ...
1. 同時滿足多個關鍵字 grep "word1" file_name | grep "word2" | grep "word3" 2. 滿足任意關鍵字 grep -e "word1" -e "word2" -e "word3" file_name 3. 排除關鍵字 grep -v "word" file_name Note: cut （剪切摘取所需部分） wc -l (計數) sort （排序） uniq (去重)
