Hi, you are trying to read from the file while you have it open for writing. You should read the current values, then do your processing, then open for writing (if you have anything to write).

Update: I don't believe you are reading from the file with "+>>", now that I test it: 

$ perl -MPath::Tiny -Mstrict -Mautodie -wE '
my $file = Path::Tiny->tempfile;
open my $FH, ">", $file;
print $FH "$_\n" for qw/foo bar baz/;
close $FH;
open my $FH2, "<", $file;
print "2: $_" while (<$FH2>);
close $FH2;
open my $FH3, "+>>", $file;
print "3: $_" while (<$FH3>);
print $FH3 "I was here";
close $FH3;
open my $FH4, "<", $file;
print "4: $_" while (<$FH4>);
close $FH4;
'

[download]
Output: 
2: foo
2: bar
2: baz
4: foo
4: bar
4: baz
4: I was here

[download]

Hope this helps!


The way forward always starts with a minimal test.

In reply to Re: Writing to File based on condition by 1nickt
in thread Writing to File based on condition by cbtshare

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