On Sun, 28 Feb 1999, PAUL TRACESKI wrote:
> I've been scratching my head over this one. I have a list of data that I
> want to selectively edit prior to sorting. The data is in two forms:
>
> ABDC 111 */4 letters, 3 spaces, 3 digits
> ABCD 22 */4 letters, 3 spaces, 2 digits
>
> I wish to add a leading 0 to the digits in the lines containing only two
> digits, leaving the current 3 digit lines as is:
>
> ABDC 111 */4 letters, 3 spaces, 3 digits
> ABCD 022 */4 letters, 3 spaces, 2 digits
>
> I can add a leading zero to the digits in all lines with:
>
> sed 's/ / 0/g' file1 > file2
>
> Is there a way to set the address option for sed to just perform
> the editing on those lines matching a pattern:
>
> / [0-9][0-9]/ or the negation of /[0-9][0-9][0-9]/
>
sed 's/ \([0-9][0-9]\)$/ 0\1/' should do it
--
Mike <[EMAIL PROTECTED]>
Beauty seldom recommends one woman to another.
