so you should either enclose the assignment in parentheses:

Why? The intention is to check $ARGV[0], so || is perfectly acceptable.

There's is a problem with both your solution and your parent's: It won't work for a file named "0". The following will, however: 

my ($file) = @ARGV
   or die(...);

[download]

In reply to Re^3: IO::Handles ... any good? by ikegami
in thread IO::Handles ... any good? by blowupp

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