linux中如何给数据添加行号
1、测试数据
root@DESKTOP-1N42TVH:/home/test2# ls test.txt root@DESKTOP-1N42TVH:/home/test2# cat test.txt i j k x c b z c b e g a
2、输出行序号
root@DESKTOP-1N42TVH:/home/test2# ls test.txt root@DESKTOP-1N42TVH:/home/test2# cat test.txt i j k x c b z c b e g a root@DESKTOP-1N42TVH:/home/test2# cat -A test.txt i j k$ x c b$ z c b$ e g a$ root@DESKTOP-1N42TVH:/home/test2# grep -n "." test.txt ## grep实现 1:i j k 2:x c b 3:z c b 4:e g a root@DESKTOP-1N42TVH:/home/test2# cat -n test.txt ## cat实现 1 i j k 2 x c b 3 z c b 4 e g a root@DESKTOP-1N42TVH:/home/test2# nl test.txt ## nl实现 1 i j k 2 x c b 3 z c b 4 e g a root@DESKTOP-1N42TVH:/home/test2# awk '{print NR}' test.txt ## awk实现 1 2 3 4 root@DESKTOP-1N42TVH:/home/test2# sed -n = test.txt ## sed实现 1 2 3 4
root@DESKTOP-1N42TVH:/home/test2# ls test.txt root@DESKTOP-1N42TVH:/home/test2# cat test.txt i j k x c b z c b e g a root@DESKTOP-1N42TVH:/home/test2# sed = test.txt 1 i j k 2 x c b 3 z c b 4 e g a root@DESKTOP-1N42TVH:/home/test2# sed = test.txt | sed 'N; s/\n/ /' ## sed实现 1 i j k 2 x c b 3 z c b 4 e g a