從文字檔案中提取特定行

假設我們有一個檔案

cat -n lorem_ipsum.txt
 1    Lorem Ipsum is simply dummy text of the printing and typesetting industry.
 2    Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.
 3    It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.
 4    It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum

我們想從這個檔案中提取第 2 行和第 3 行

awk 'NR==2,NR==3' lorem_ipsum.txt

這將列印第 2 行和第 3 行：

 2    Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.
 3    It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.