This confuses me. I don't see how this would work. It looks like it will print no lines since 32 .. 32
should return either 1 (the number of elements in the list) or 32 (the last element in the list) both of which are "true". I am betting the later, but I am not sure. Would you kindly point out where I am wrong?
perl -- executes perl
-i -- in-place editing
-n -- implict loop
-w -- turn on warnings (why?)
-e -- execute the following string as the program
print -- print what is in $_ (only executed if the unless is false)
unless -- execute the previous command if the result of the following
expression is 0, undef, or '' (or the equivalent)
32 .. 32 -- construct a list containing the numbers 32 through 32
filename -- the file to edit
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