我需要计算包含单词the和an文本文件 ( poem.txt) 的行，但不计算同时包含.
我试过使用
grep -c the poem.txt | grep -c an poem.txt
但是这给了我6个错误的答案时的总数the和an是9行。
我确实想计算包含单词的行而不是单词本身。只有实际的单词应该算数，所以the但不是there，an但不是Pan。
示例文件： poem.txt
Where is the misty shark?
Where is she?
The small reef roughly fights the mast.
Where is the small gull?
Where is he?
The gull grows like a clear pirate.
Clouds fall like old mainlands.
She will Rise calmly like a dead pirate. …