I have a 3 column file that represents a symbol table for a certain program image, generated directly using nm on every build. 0025e8dc T _IO_file_fopen 0025e71c T _IO_file_init 00352e1f T rtcTimeGet I have another static file that specifies a number to correspond with certain functions, like so: 2 rtcTimeGet What I want to do is create a new file that combines this information, and substitutes a 1 for anything thats in the nm dump but not the static file, like so: 1 0025e8dc T _IO_file_fopen 1 0025e71c T _IO_file_init 2 00352e1f T rtcTimeGet Can awk do this? I've used it before to organize data but I've never tried to merge two files - and I can't find any useful information online about how to go about this.

Try something like this:

#! /usr/bin/awk -f!main {  syms[$2] = $1}main {  if (syms[$3]) {    print syms[$3] " " $0  } else {    print 1 " " $0  }}

Run it like this:

nm foo.o > dump./bar.awk syms main=1 dump

Where "syms" contains the contents of the static file.

[Edited by - kinetik_mjg on June 3, 2006 7:47:41 AM]