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Find/replace to new file: ksh -> perl

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# 1  
Old 05-16-2008
Find/replace to new file: ksh -> perl
I have korn shell script that genretaets 100 file based on template replacing the number.
The template file is as below:
Code:
$ cat template
file number: NUMBER

The shell script is as below:
Code:
$ cat gen.sh
#!/bin/ksh
i=1;
while ((i <= 100)); do
        sed "s/NUMBER/$i/" template > file_${i}
(( i = i + 1));
done

Now I want to migrate this code into perl script called gen.pl
How can I fine replace NUMBER is template file and generate new output file?
# 2  
Old 05-16-2008
Conveniently, Perl syntax is identical to sed syntax for this part.

Code:
s/NUMBER/$i/

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