In Perl I could:
cat file.txt | perl -nE 'say $.'
The closest Raku solution i found (without using state counter variable) returns position in bytes:
cat file.txt | raku -ne 'say $*IN.tell'
How to get current line number during "raku -n" iteration?
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2 Answers
Use a state variable for it and increment that. Most conveniently, there is the anonymous state variable $, meaning one can do:
echo -e "foo\nbar\nbaz" | perl6 -ne 'say $++ ~ ": $_"'
Which gives:
0: foo
1: bar
2: baz
Use ++$ instead for base-1 numbering. There isn't anything special built in to the handle; it falls neatly out of state variables or, for an explicit iteration, .lines.kv, and then it's only paid for by things that want it.
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