Sed/Awk help!!!

[Ed Wilts]

On Thu, Dec 29, 2005 at 11:15:04AM -0500, Tom Callahan wrote:
> I'm trying to parse a certain section from an html file, but cannot figure out how to.
> 
> The section I am looking at is below:
> 
> <----------START FILE---------------------->
> cfg:	tab_config_1	
> 		tab_bernstein_tape_zone; tab_bernstein_zone; 
> 		tab_bud_tape_zone; tab_bud_zone; tab_capone_tape_zone; 
> 		tab_capone_zone; tab_dev9ias_tape_zone; tab_dev9ias_zone; 
> 		tab_devdb_tape_zone; tab_devdb_zone; tab_devecom_tape_zone; 
> 		tab_devecom_zone; tab_devhttp_tape_zone; tab_devhttp_zone; 
> 		tab_ecom_tape_zone; tab_ecom_zone; tab_oesdev_tape_zone; 
> 		tab_oesdev_zone; tab_oraprod1_tape_zone; tab_oraprod1_zone; 
> 		tab_sanapp_zone; tab_tahoe_tape_zone; tab_tahoe_zone; 
> 		tab_wmsa_tape_zone; tab_wmsa_zone; tab_wmsdev_tape_zone; 
> 		tab_wmsdev_zone; tab_citius_tape_zone; tab_citius_zone; 
> 		red1_tape_z1; red1_tape_z2; red1_z1; red1_z2; red2_tape_z2; 
> 		red2_z2; blue1_tape_z1; blue1_tape_z2; blue1_z1; blue1_z2; 
> 		blue2_tape_z1; blue2_tape_z2; blue2_z1; blue2_z2; 
> 		yellow1_tape_z1; yellow1_tape_z2; yellow1_z1; yellow1_z2; 
> 		yellow2_tape_z1; yellow2_tape_z2; yellow2_z1; yellow2_z2; 
> 		tab_dl140a_tape_z1; tab_dl140a_z1; tab_dl380a_1_tape_z1; 
> 		tab_dl380a_1_z1
>  cfg:	tab_test_1	
> 		tab_devhttp_zone; tab_devhttp_tape_zone; tab_devecom_zone; 
> 		tab_devecom_tape_zone; tab_devdb_zone; tab_devdb_tape_zone; 
> 		tab_dev9ias_zone; tab_dev9ias_tape_zone; tab_citius_zone; 
> 		tab_citius_tape_zone; tab_capone_zone; tab_capone_tape_zone; 
> 		tab_bud_zone; tab_bud_tape_zone; tab_bernstein_zone; 
> 		tab_bernstein_tape_zone; tab_dl380a_1_tape_z1; 
> 		tab_dl380a_1_z1; tab_ecom_tape_zone; tab_ecom_zone; 
> 		tab_oesdev_tape_zone; tab_oesdev_zone; tab_oraprod1_tape_zone; 
> 		tab_oraprod1_zone; tab_sanapp_zone; tab_tahoe_tape_zone; 
> 		tab_tahoe_zone; tab_wmsa_tape_zone; tab_wmsa_zone; 
> 		tab_wmsdev_zone; tab_wmsdev_tape_zone; red1_tape_z1; 
> 		red1_tape_z2; red1_z1; red1_z2; red2_tape_z2; red2_z2; 
> 		blue1_tape_z1; blue1_tape_z2; blue1_z1; blue1_z2; 
> 		blue2_tape_z1; blue2_tape_z2; blue2_z1; blue2_z2; 
> 		yellow1_tape_z1; yellow1_tape_z2; yellow1_z1; yellow1_z2; 
> 		yellow2_tape_z1; yellow2_tape_z2; yellow2_z1; yellow2_z2
> <---------------END FILE--------------------->
> 
> What I want is to be able to only grab the section from "cfg:	tab_config_1	" to just before the next "cfg:" and ignore everything else in the file.

How about:

[ewilts at pe400 ~]$ cat foo.awk
/cfg/ {
        variable = $2
        print ("variable="variable)
}
$1!~/cfg/ {
        print ("appending to " variable)
        vararray[variable] = (vararray[variable] $0)
}
END     {
  print "wrapping up and dumping array"
  for (i in vararray) {
    print "\n",i,":"
    print vararray[i]
  }
}

What this does is assign each variable to an array element and
concatenate the list below it.  So you'll have one vararray[tab_config_1]
and one for vararray[tab_test_1].

This should give you the general approach.

Cheers,
        .../Ed

p.s. you made me work for that one!

-- 
Ed Wilts, RHCE
Mounds View, MN, USA
mailto:ewilts at ewilts.org
Member #1, Red Hat Community Ambassador Program