Shell Programming and Scripting

Hi all,

I have an EPS file header, with the first lines pasted below. I would like to replace lines, such as the "BoundingBox" field line 9, by the corresponding line from a similar EPS figure (so that the bounding boxes and other parameters are the same and my figures look nice!).

I have seen how to replace a specific line with sed, such as:

Code:

sed '9s/.*/new contents/' < dummy.txt

but I would like to be able to grab the "BoundingBox" line from another file, and paste its content in the current file.

It seems like the line where this field is stays the same, but optimally I would be able to do it by looking for a field and not a line. I would like to do this with an incantation of awk/sed but I'm not very familiar with it.
Hopefully if I understand how to do it for this line I could apply it for other fields.

Thanks for the help.

Code:

%!PS-Adobe-3.0 EPSF-3.0
%%Creator: MATLAB, The Mathworks, Inc. Version 7.10.0.499 (R2010a). Operating System: Linux 2.6.32-32-generic #62-Ubuntu SMP Wed Apr 20 21:52:38 UTC 2011 x86_64.
%%Title: /home/tblum/Documents/papers/source_fracture/figs/field-all_b.eps
%%CreationDate: 06/14/2011  11:04:07
%%DocumentNeededFonts: Helvetica-Bold
%%DocumentProcessColors: Cyan Magenta Yellow Black
%%LanguageLevel: 2
%%Pages: 1
%%BoundingBox:   89   148   502   631
%%EndComments

Code:

awk 'NR==FNR{if (/%%BoundingBox/)x=$0;next}/%%BoundingBox/{$0=x}1' another_file current_file

Awesome, thanks a lot bartus11.

Now I just need to start learning awk.