macOS BASH nl command - start at 0?

[Big Dave]

I'm using nl to number the lines in a file:

nl file > newfile

nl defaults to labeling the first line 1.

Is there a way to make nl start at 0?

 

[robbieduncan]

Use the manual! Type:

man nl

and see what it says (hint look for -v switch)

 

[Big Dave]

Thanks for the help! Worked great. I didn't know if -v was the right choice. I should have tried it. DOH! Thanks!