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Actually, using ls has some advantages. For instance, the opendir/readdir solution presented by jwkrahn below will try to open the current and parent directory as if they were files. A plain 'ls' will not return any names starting with a dot. The equivalent of
my @files = `ls $dir`;
my @files; { opendir my $dh, $dir or die; @files = grep {!/^\./} readdir $dh; closedir $dh; }
As for using cat to read a file, it's something I do often. It's simple. It's a short one liner. Doing it in pure Perl requires several lines, or something cryptic.
my $info = do {local (@ARGV, $/) = $file; <>}; # Cryptic # 7 Lines. my $info; { open my $fh, "<", $file or die; local $/; $info = <$fh>; close $fh; }

In reply to Re^2: greater efficiency required (ls, glob, or readdir?) by JavaFan
in thread greater efficiency required (ls, glob, or readdir?) by jperlq

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