Count and replacing strings a texfile

[puckoh at my-deja.com]

Hello.

This is a probably basic question.
I have a textfile about 120k large, and there is several strings in it
which I must replace.
The strings are named "%id%" and the number of strings are unknown.

First, I need to count them all.
Then I must replace every one of them with a incrementing number.
Like the first %id% is replaced with 1, the second with 2 etc.

I've been told that this is a perfect job for Perl, but I don't
understand Perl.
I merely understand Python. Well, I think I got the basics anyway. :)


Anyone care to help me out for a minute to suggest what to do?
Any pointers to examples are alot appreciated.

Thanks.

/Andreas


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