in nearly every die () call: print out the $! scalar, which holds the "true" system error message.
please put the following two lines above your scripts:
use strict;
use warnings;
explanation can be found
here
this code example works for me:
use strict;
use warnings;
open (FILE, "<test.data") or die "open: $!";
my @file_contents = <FILE>;
close (FILE);
@file_contents = map {s/stefan/kabel/g; $_;} @file_contents;
open (FILE, ">test.data") or die "open 2: $!";
print FILE $_ foreach (@file_contents);
close (FILE);
not the nicest code, but who cares.
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