Given a file of strings, one sring per line, I want to write a script to make the file usable by SQL: each string should lie within single quotes, a comma should follow each quoted string (except the last), and the whole bunch should be enclosed by parens. I'd prefer to read the file in line by line, but I am wondering if that will let me acomplish what I want to do. For a file:

one
two
three

I want:

('one',
'two',
'three')

this sed script seems to work:
sed -e s/\(.*\)/'\1',/g -e 1s/\(.*\)/(\1/ -e $s/\(.*\),/\1)/$s/\(.*\),/\1)/
but I was hoping perl could do it more readably or simply. The last line, where the comma should be missing, is hard to achieve. This is what I have so far: 

use strict;
my $line;
while(<>){
   chomp;
   s/^/'/g;
   s/$/',/g;
   if($.==1){ s/^/(/;}
   print $_,"\n";
   $line=$_;
# this is where I am stuck; I need to test if we are at the last line.
}

[download]
but you can see that the last line isn't quite right. Any thoughts?

In reply to wanting to make a file of strings usable by SQL by jjohhn

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