LINUX

LINUX NL指令

介紹

nl指令用來檢視檔案並加上行號。

語法

nl [options] [files]
Code language: Bash (bash)

常用的options

-b [a|t|n|p R] Prepend numbers to all lines (a), nonblank lines (t), no lines (n), or only lines that contain regular expression R. (Default=a) -v N Begin numbering with integer N. (Default=1) -i N Increment the number by N for each line, so for example, you could use odd numbers only (-i 2) or even numbers only (-v 2 -i 2). (Default=1) -n [ln|rn|rz] Format numbers as left-justified (ln), right-justified (rn), or right-justified with leading zeros (rz). (Default=ln) -w N Force the width of the number to be N columns. (Default=6) -s S Insert string S between the line number and the text. (Default=Tab)
Code language: plaintext (plaintext)

範例

你可以檢視檔案並加上行號:

⤍ cat mytext Once upon a time, there was a little operating system named Linux, which everybody loved. ⤍ nl mytext 1 Once upon a time, there was 2 a little operating system named 3 Linux, which everybody loved.
Code language: Bash (bash)

發佈留言