Shell Programming and Scripting

Hello Scripting experts,
I need a very basic suggestion regarding scripting(shell or whtevr).

My requirement is to to generate a file after:
1) Reading a file containing list of names etc.
eg: list is like this
input1 : IN
input2 : IN
.
.
output1: OUT
output2: OUT
.
.
2) Then taking these inputs/outputs wanted to perform some string addition(particular type) on these names to generate new file.
eg:
map( (input1)input , (output1)output )
.
.
.
Basically can add a FOR loop for counting the length(N) of my input list file, and add the above map strings that many times(N).

I know its kinds very simple, tell me if shell scripting would be best to perform such kinda string operation or any other script like perl...

Looking forward for some nice solutions!!
How to do that with simplest usage of commands?
Regards,
Ady

Not sure if I hit what you want and a bit lengthy, but nevertheless here you go:

Code:

root@isau02:/data/tmp/testfeld> cat infile
input1 : IN
input2 : IN
input3 : IN
input4 : IN
output1: OUT
output2: OUT
output3: OUT
output4: OUT
root@isau02:/data/tmp/testfeld> awk -F: 'BEGIN{a=0;b=0} $2 ~ /IN$/ { in_[a]=$1; a++} $2 ~ /OUT$/ { out_[b]=$1; b++ } END{for( x=0; x<a; x++){print "map( ("in_[x]")input , ("out_[x]")output )" }}' infile
map( (input1 )input , (output1)output )
map( (input2 )input , (output2)output )
map( (input3 )input , (output3)output )
map( (input4 )input , (output4)output )

Thanks.
Actually I want to create new file, such that these variables could be used, eg: my file will be output.file having
logic temp;

module (tempo)
begin
map( (input1 )input , (output1)output )
map( (input2 )input , (output2)output )
map( (input3 )input , (output3)output )
map( (input4 )input , (output4)output )
end

endmodule

Problem is print command like above canot allow me to print like above, with newlines or whtever. I tried with printf command too.
Is there any other way to insert newlines,etc inside print{ }.
Like this
print{"
logic temp;

module (tempo)
begin
map( (input1 )input , (output1)output )
map( (input2 )input , (output2)output )
map( (input3 )input , (output3)output )
map( (input4 )input , (output4)output )
end

endmodule"}
Thanks for giving your feedbacks.
-Ady

My actual file to print is big.
So i want best way to direct output values to that big outfile file.
If we can avoid using multiple print statements...