X-Git-Url: http://dxcluster.net/gitweb/gitweb.cgi?a=blobdiff_plain;f=perl%2Fwatchdbg;h=92765ab4132f0ee913e0e32c8b4ae442be8dafc0;hb=78cf2dcb9be8128af7f8dc5ae37540c9c53c6057;hp=720904bfca013ec9d54224e26a637cef38bb7d1a;hpb=cc75f4ffe229e8ff381828f88a68c89cec818788;p=spider.git

diff --git a/perl/watchdbg b/perl/watchdbg
index 720904bf..92765ab4 100755
--- a/perl/watchdbg
+++ b/perl/watchdbg
@@ -33,7 +33,8 @@ my $fp = DXLog::new('debug', 'dat', 'd');
 my @today = Julian::unixtoj(time()); 
 my $fh = $fp->open(@today) or die $!; 
 my $nolines = 1;
-$nolines = shift if $ARGV[0] =~ /^\d+$/;
+$nolines = shift if $ARGV[0] =~ /^-?\d+$/;
+$nolines = abs $nolines if $nolines < 0;  
 my $exp = join '|', @ARGV;
 my @prev;