Sed question

[John Cornelius]

In article <107 at dcl-csvax.comp.lancs.ac.uk> david at comp.lancs.ac.uk (David T. Coffield) writes:
>In "sed" how can does one form a command to do the following:
>
>Take file A, find the first line beginning with a 150,
>append a line of text at that point and then write out
>file A (all of it) with the newly inserted line.
>
I suppose you could try

/^150/a\
<THE LINE YOU WANT TO INSERT>

-- 
John Cornelius
(...!sdcsvax!piaget!jc)