Re: Replacing a pattern in one file by reading a string from anotherfile

On Thu, 08 Dec 2005 14:42:31 +0800, <kaushik.m@xxxxxxx> wrote:

>
> Hi ,
>         I found out another way(though quite lame , i  admit) to do this
> same thing :-
>
> paste 2 3 | sed 's/:/ /g' | awk '{print $3,":",$2}'
> (Here we can always replace the awk part by the sed equivalent)
>
> File 2 contains :
>
> username:SAPextract
> password:$$$$$
> Monthtoextract: October
>
> and File 3 contains :
>
> RunasUser: $username
> RunasPsswd: $password
> RunMonth: $Monthtoextract
>


Since you use awk and since you may want to get on more solution, I will
give my gawk solution:

-------f.awk
ARGIND-2{           # if the 1st argument ("f2" in this case)
   a["$"$1]=$2       # put 2nd field into an array with the index
   next}             # set to the value of 1st field.

$2 in a{            # if the variable has been defined in "f2"
   sub("\\"$2,a[$2])} #then substitue

1                   # print the content of "f3".
-------end of f.awk

------------------
$ awk -F": *" -f f.awk f2 f3
RunasUser: SAPextract
RunasPsswd: $$$$$
RunMonth:  October
------------------

-- 
hq00e



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