[PLUG] 'sort' to find duplicate rows

[Russell Johnson]

Take a look at 'sort | uniq'

On Jul 13, 2012, at 3:59 PM, Rich Shepard wrote:

>   The text file has > 120k rows; each row has 8 columns. There are
> duplicate rows that I want to eliminate. My reading of the sort man page and
> various Web pages with examples tells me that the sort --key option is
> limited to a sequential starting field and ending field. What I need is to
> sort on fields 1, 2, and 4.
> 
>   If 'sort' won't do this, what tool will? I don't see how awk, sed, or grep
> can, yet a combination of these perhaps might.

Russell Johnson
russ at dimstar.net