Shell Programming and Scripting

data.txt

Code:

{
    "auth_type": "role",
    "default_attributes": {
        "sudoers": {

i need to know how manyspaces are before an actual character in each line of a file.

for example. in the above data.txt,

Code:

There are 0 spaces leading up to {
There are 4 spaces leading up to the line "auth_type"
There are 8 lines leading up to the "sudoers

something that would just output the number of spaces and the line number would be perfect.

my attempt:

Code:

awk '{ print length($0),NR }'

however this only prints the total number of characters in a line and the line number.