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Re: [MacPerl] Perl Filter Demos?



> 1) Number the lines in selected region.  It's useful when you want to
> number the lines starting with 1 somewhere in the middle of the file.
>
>   #!perl -n
>   printf("%4d: $_",++$i);

TMTOWTDI

#!perl -p
printf("%4d: ", ++$i)

Note how this prints $_ implicitly.



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