Re^3: command line perl reading from STDIN

[choroba]

in reply to Re^2: command line perl reading from STDIN
in thread command line perl reading from STDIN

The fourth line (i.e. the first line, in fact) is consumed by -n. See perlrun - how to execute the Perl interpreter.

[perlhappy]

At the start, its the second line and then every fourth file after. ie line 2, 6, 8, 12 .. eof
This is what was confusing me but I think I worked it out. See below. Thanks