Jeff Zhang wrote: >On 4/3/07, Ron Johnson <[EMAIL PROTECTED]> wrote: >> >> On 04/03/07 07:39, Jeff Zhang wrote: >> [snip] >> > >> > >> > I just care about duplicated ones in column 2, if so, to delete the >> line. >> >> Does it matter which line is deleted? >> >no, have a unique column 2 and keep undeleted lines to its original format >will be ok.
$ sort -u -k2 filename -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
