sed:numbering:number_each_line_of_a_file_but_only_print_numbers_if_line_is_not_blank

SED - Numbering - Number each line of a file (but only print numbers if line is not blank)

sed '/./=' filename | sed '/./N; s/\n/ /'

Example

Running that command again this file:

aaa
bbb
ccc

returns:

1 aaa
2 bbb
3 ccc

sed/numbering/number_each_line_of_a_file_but_only_print_numbers_if_line_is_not_blank.txt · Last modified: 2020/08/15 12:03 by 192.168.1.1